R500 not compatible with ac-7260

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Just installed zd1100 and r500s, worked ok when eventually got hold of relevant firmware. (new customer) Having problems connecting tosh with intel ac7260. Seems problem is to do with channelfly and .h messages. Works if select one channel as this disable channelfly. (tried on standalone unit). Been asked to manually set channel in ZD as test but need to check interference. Other option to set run stop time. Running build 101 and have downloaded build 108 but not sure if it includes any fix. First ruckus install so not overly happy.
Trevor
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Trevor Wright

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Posted 5 years ago

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Victor Tort

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Hello Trevor,

Which version are you talking about?

Could you please elaborate a little bit more your tests and your results?
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Michael Brado, Official Rep

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Initial 9.8.0 GA release for R500/R700 had issue ZF-7357: Not using 2-stream rate with Intel 7260 2x2 11ac NICs.

Firmware builds 9.8.1.0.101+ have the fix to improve performance for these clients.

Next 9.8 MR2 release is expected in Nov14. Not sure if 5G background scanning
will be enabled or disabled by default. If not enabled, running ChannelFly for a
period of time will allow your APs to decide on other than channel 149. Stopping
it after a period of running, was recommended to prevent problems in .106/.108
interim builds.
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Koen

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Just disable channel fly and only use background scanning. Or just let channelfly run during the night when there are no clients (for about 6 hours) make sure to reboot all access point before you leave, you can configure this under radio group options and services. Also what version are u using? Is the client firmware supporting 202.11h channel change announcements.
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Trevor Wright

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Newbie to Ruckus I believe disable command is via the command line
but I do not know the syntax, can you help.
ZD is 9.8.1.101.
Intel say they support 802.11h
running latest intel s/w.
T
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Michael Brado, Official Rep

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Hi Trevor,

The ZD WebUI is meant to be more user friendly than command line. From the
Configure tab, Services on the left, the boxes to configure 2.4/5G channel selection
(self healing) are found. We suggest to check the 5G box to enable Automatic
adjustment, and pick ChannelFly from the dropdown (rather than Bkgd Scanning).

Apply this change and let your APs use the algorithm which entails an off-channel
scan an building of an internal database with interference seen. After at least two
hours, the AP ought to have selected a better-than-default channel. You can then
change the ZD Configure/Services, and uncheck the 5G Automatically adjust box.

This only applies to 5G band when you have our newest 11ac AP models in use.
You can use background scanning or channelfly algorithm on your 2.4G channels,
and leave it running. I hope this is helpful.
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John D, AlphaDog

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Thank you for this helpful suggestion! So just to clarify, I should check the automatically adjust power box for 5GHz on AC AP's? Does it do harm on a heterogeneous deployment of 7982's and R700's? Just trying to reconcile this with the General advice that ruckus recommends allowing Beamflex to do its thing instead of allowing the AP's to decrease their power levels.
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John D, AlphaDog

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Never mind - looking at the ZD pane, it makes more sense. There's 3 settings that start with "Automatically Adjust", and you weren't implying to turn on the power reducing option.
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Josh Hymer

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We are having major issues with our R710 deployment.  Looks like the Lenovo Chromebook N21s are using the same Intel 7260 card.  Anyone having issues with these?
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Neal Landry

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I have had nothing but problems with the 7260 and my R710's.  Impossible to recreate the issues for support, so we are left with a less functional wireless network.
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Josh Hymer

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Yes, we have an open case currently.  00344561.  We just keep chasing our tails trying to figure out a solution.  If you have any progress, please let me know.  We are having major roaming issues and traffic delay issues.  If we hardwire the connection we are good, or most other devices work pretty good.
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Neal Landry

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Likewise, I would love to hear if you've made any progress. Someone has to have solution, as this chip is over a year old at this point
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Kevin Graham

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I too have the r710's installed along side Lenovo N21s. We had lots if issues with dropped packets and disconnections. I turned channelization from AUTO to 80 and that stopped the dropped packets. Still working with Ruckus though to resolve low throughput to my N21's. I talked to Lenovo about the bad cards. They told me to not expect anything from them.
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David Henderson

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Does Ruckus think this has something to do with the AC7260 nic? The Chromebook? Something with their firmware? How you have things configured?
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Kevin Graham

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They haven't said so. The Internet has though. Google the card model and read. However, an N21 on my home network runs fine. There's something weird about this card and the way it functions with institutional wireless infrastructures. What we tried so far was changing the 5GHZ channelization to 80 rather than AUTO. That seems to help a little. The machine is still running unacceptably slow.
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David Henderson

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I have googled the Intel AC7260 card and there are many threads talking about problems with dropping off or slow speeds. It seems that on the PC side much of these have been solved with later Intel drivers but it seemed to take more than a year to sort this out. Of course with Chromebooks we are at the mercy of Google to embed new drivers in and update of Chrome OS. I am trying to get a sense whether this affects all enterprise wireless (Aerohive, Cisco, Meraki, Aruba, Ruckus, Extreme, etc.) or is just limited to Ruckus.

Any thoughts?
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Josh Hymer

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From what I can tell, it seems that this is affecting all providers.  If you search google for 7260 along with the brand of wireless, it seems to pull a lot of threads related to these problems.  Kevin, is there anyway I could get the ruckus case number on your problems?  I am getting very frustrated with my current case.  It is quite old and all the resolutions we have tried have basically been a huge waste of my time.  All the logs that we pull on the clients/aps are really no help and the engineer that is involved is not offering any new info from the previous calls.  Thank you.
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David Henderson

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What are you using to test throughput? I have an R700 and R710 on loan along with an HP Chromebook with an Intel AC7260 nice. I want to see if I see the same low throughput
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Josh Hymer

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We also have a Dell E5540 that just happens to have the same 7260 card as well.  We have had nothing but problems with this system as well.  Updating the drivers seemed to help, but dell has replaced the card within the first week and it didn't fix anything.  This card was also installed exclusively on the E7740.  Dell is coming out again tomorrow to replace the wireless card for a third time.  They will not give me a different brand or model card no matter how high I go up the ladder.  After the driver update to 18+ it seems to have improved.  At least it maintains a connection.  Keep in mind we have had 3 separate enterprise wireless network solutions in place since the purchase of the dell E5540.  Oddly enough it didn't work on any of the different branded solutions.  Including:

  1. HP (Colubris) MSM422 also MSM460 on a ZL765 controller ($32k install)
  2. Ubquiti UAP-AC installation.  Using 3.2.1 firmware
  3. Ruckus R710 on 9.12.0 build 148


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Josh Hymer

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We are using speedtest.net to test most of the speeds.  We are seeing 20-10mb transfer rate, and extended test time.  On other branded cards we are seeing 200mb+ transfer rates.  I haven't had time to install a local speed test server yet, but it is planned.
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Josh Hymer

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I contacted Aaron Heath with Columbia Public Schools.  He has Dell Chromebooks with the 7260 cards.  They have 1400 r710s and 100 controllers.  They have no issues whatsoever.  :) Very confusing.  I am galling their SE from ruckus to see what they did differently. 
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Kevin Graham

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Have you tried changing the Channelization yet?
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Josh Hymer

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Yes, one of the first things we changed.
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Kevin Graham

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What are you using for filtering? Mobile?
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Josh Hymer

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Local filtering is provided by Cyberoam.   What gets me is the only problems we are having are the chromebooks with the 7260s in them, and the one dell E5540.  All of our E5530 (with dell DW1540 wifi), E6400s, and all our phones/tablets/android/apple all work great.
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Josh Hymer

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Unfortunately we have 430 chromebooks.  Other devices are around 120ish.
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Josh Hymer

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Ok, just got off the phone with Ruckus Support in Ca.  We changed a few things in the CLI.  There is new firmware being released next week hopefully.  I am now testing the firmware, it looks very promising.
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Kevin Graham

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That will be a relief if it works.
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John D, AlphaDog

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Is this the 9.12.2 MR release Michael previous alluded to? Or something else?
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Josh Hymer

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It is showing 9.12.1.0 build 158
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Kevin Graham

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Current version is 9.12.1.0 build 148, so this is a step ahead.
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John D, AlphaDog

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Yeah, so it's not MR2 but another MR1 refresh. Very interesting -- looking forward to the update.
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Kevin Graham

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Still waiting here for the new firmware. Did they tell you when it would be out?
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Josh Hymer

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Not sure... I am going to call in today.  I am still having issues.. but not quite as bad.  :)
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John D, AlphaDog

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Is the plan still to have a new firmware released this week?
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Josh Hymer

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Happy new year!!  I just finished talking on the phone with Herb again.  They have a new GA firmware release, it should be out any day.  It seems much more stable (I installed yesterday).  The version is 9.12.2.0 build 84.  My concurrent user count went from 164-221 to 267-331 connected users.  It seems like it has been mostly fixed on our site.
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Michael Brado, Official Rep

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With most client adapters, using the latest drivers often provide latest fixes, both public and internal.
I've seen a couple posts in Intel/Microsoft forums that also provide client side settings that greatly improved performance (ie from 54mb to 866mbps)

I don't have a PC/Apple/Chromebook with this Intel adapter, only that this info/advice can be found on the web:

Driver version 17.0.3.2+

https://downloadcenter.intel.com/search?keyword=Intel%c2%ae+Dual+Band+Wireless-AC+7260 


802.11n Channel Width for 2.4 GHz : Auto
802.11n Channel Width for 5.2 GHz : Auto
Ad Hoc Channel 802.11b/g : 1
Ad Hoc QoS Mode : WMM Disabled
ARP offload for WoWLAN : Enabled
Bluetooth(R) AMP : Enabled
Fat Channel Intolerant : Disabled
GTK rekeying for WoWLAN : Enabled
HT Mode : VHT Mode
Mixed Mode Protection : CTS-to-self Enabled
NS offload for WoWLAN : Enabled
Preferred Band : 1. No Preference
Roaming Aggressiveness : 5. Highest
Sleep on WoWLAN Disconnect : Disabled
Transmit Power : 5. Highest
U-APSD support : Disabled
Wake on Magic Packet : Enabled
Wake on Pattern Match : Enabled
Wireless Mode : 6. 802.11a/b/g


PS.  The 54mb CU had TKIP on his WLAN, use WPA2/AES on PSK WLANs.
(Edited)
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Josh Hymer

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Unfortunately we cannot download drivers from Intel's site since they are Chromebooks.  :(
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GWehe

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Hey, Michael Brado,
We need a CHROME solution.
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Michael Brado, Official Rep

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I'm sure both of the two companies who make your PC/radio card are trying to solve this too,

but browsing the Internet, I have found a suggested Chromebook fix:



I created a config.properties file in my
site folder and added the following line:



config.uapsd_enabled=false



and Provisioned the UAP



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Josh Hymer

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Can you link the site?  I am not exactly sure where this is supposed to be entered.  On the google management/Zone Director/Chromebook.  Thank you for your quick response.
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Josh Hymer

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I think I found it..  We had these APs and just removed them for this reason..  interesting.
https://community.ubnt.com/t5/UniFi-Wireless/Problems-with-Intel-Dual-Band-Wireless-AC-7260-in-Lenov...
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Michael Brado, Official Rep

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I'm not admin-wise in the world of Chromebooks, so hope others on that platform can be of assistance.

Yours is the link where I found the advice.



(Edited)
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Josh Hymer

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Ok, yes, this fix is only for the Unfi wireless controller for Ubiquiti access points only.  I made this exact change on our UBNT server and it helped.  Unfortunately this is only a fix for Ubnt equipment only (Which is super cheap and we removed all the UAP-ACs about 1 month ago.). It is not for the very costly and well known wireless company Ruckus.  :(
(Edited)
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GWehe

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So in other words... just to make sure an old guy like me understands.....  The Ruckus r500's (and in my case the zf7363 AP's) cannot properly handle the "newer" intel AC-7260 wireless cards, forcing us to try a configuration change in a no-where-to -be-named application to fix a Ubiquity problem?  DO I have the correct?
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Josh Hymer

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I want to thank you for your quick response Michael.  I just hope we can find a resolution for this problem quickly.  90% of our devices are Lenovo Chromebook N21s with 7260 cards.  I am getting many frustrated teachers commenting on the connectivity problems. 
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GWehe

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Josh, my man that is the understatement of the day!!!  I have 150 of these things and they are DEAD in the water.
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Michael Brado, Official Rep

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No, Ruckus 802.11ac APs outperform our competition.  Independent testing shows that.

http://a030f85c1e25003d7609-b98377aee968aad08453374eb1df3398.r40.cf2.rackcdn.com/other/carnet-wifi-t...

It appears the new AC chip/drivers for client devices are not immediately operating at optimum performance (on anybody's APs).

Chromebook platform device driver update capability or lack thereof, seems to be a limitation of the laptop.

Hopefully, enough analysis and testing of config.properties to match recommended PC/Apple laptop settings, can serve to help Chromebook users too!
(Edited)
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Michael Brado, Official Rep

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Does anyone wish to identify your Chromebook manufacturer and offer us a look at your "config.properties" file?

I'll be glad to help identify any of the above recommended settings to adjust.
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GWehe

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Too bad it doesn't help me at all....  If I cannot configure the Chromebooks, and I cannot set the AP's to connect to the Chromebooks, then maybe Meraki is in my future.
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GWehe

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Where is a config.properties file?  Never heard of it.
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Josh Hymer

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Model:  Lenovo N21
Config.properties is a Ubiquiti controller file.  It is not on the Chromebooks. It only exists on Ubiquiti controllers.  Which doesn't help us a bit with Ruckus equipment.
(Edited)
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GWehe

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Then why the HADDES are even talking about this file?
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GWehe

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I gotta go do some work.... nice chatting with you guys.
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Josh Hymer

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Good question.. :)
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Michael Brado, Official Rep

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Thanks Josh. 

So, the only Chromebook/Intel ac-7260 advice I found on the Internet was from UBNT and how to adapt their config.properties.



In previous tickets, an Acer Chromebook troubleshooting case, says to avoid the 5G DFS /radar channels, and the customer

immediately saw improved performance.

 

If Ruckus can help, I've found a bug ER-3229, for Chromebook periods of not passing traffic or very low throughput (on R710),

awaiting further engineering feedback, with a target of ZD 9.12.2, SmartZone 3.1.1.0.476+.



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Trevor Wright

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Reported problems with R500s about a year ago updated everything I could but still had problems with tosh laptops connecting. Problem still with us. If laptop does't connect then pupil walks down the corridor to another ap which connects and then returns to the classroom and all is well. On Friday I will check 7260 chip driver version and the d1100 and r500 versions. They don't have Chromebooks, all other devices connect ok.

T
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Michael Brado, Official Rep

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Hi Trevor,

   It sounds like you might have an AP in a "stuck" state, perhaps due to interference, if clients are

unable to connect, but connect ok when roaming a short distance.  Can you also upgrade your ZD

to the latest 9.10.1.0.59 for ZD1100s, which will have our latest bug fixes and performance

enhancements too.  Then if on Intel 17.0.3.2+ too, should be smoother sailing.
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GWehe

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We have the same issue where the AP first connects with the chromebooks and then when they go to sleep or drop for whatever reason, this same AP will not pick them back up again.  We have taken the AP off-line countless times and I am wits-end.  I will attempt to upgrade the firmware to the latest version and see what happens.  I am suspecting possible AP interference in the hallway where it is.

QUESTION:  Does the alignment of the AP make a difference?.... meaning mounted horizontally versus vertically?
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Michael Brado, Official Rep

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Again I admit up front I have not used Chromebook personally, but previous advice about ac-7260 included disabling U-APSD/sleep mode.

Internet sources offer some user configuration, and mentions a "Keep Awake" extension from the Chrome Web Store for this purpose:
https://greenido.wordpress.com/2012/12/30/how-to-prevent-your-chromebook-from-going-to-sleep/
http://www.omgchrome.com/extension-to-stop-chromebook-sleeping/

Ruckus indoor model APs (including R700, R300, R500, R600, R710) provide the best coverage in a Horizontal (flat) position.
Ceiling mount is good for floors above/below, but even sitting on top of a shelf or bookcase is ok.
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Michael Brado, Official Rep

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Chromebook OS updates can help too! 

Ruckus Tech Support reports that Google OS 47, or current latest, also includes driver updates that significantly improved Chromebook wireless performance. 

How to check for and install OS updates:
https://support.google.com/chromebook/answer/177889?hl=en

Can anyone in the group update their Chromebook and let us know 1) what version it is, and 2) if it helped your wireless experience?  Neal?
(Edited)
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Josh Hymer

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Our Chromebooks only update to 46 as the latest os available unless I go to the beta.  After changing to beta, nothing changed in reliability unfortunately.
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Neal Landry

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Giving beta a try now. I'll let you know.
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Neal Landry

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Moved over to the BETA channel on the Chromenbooks and have seen no change
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David Henderson

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So your chromebooks with 7260 nics are not working at all on Ruckus wireless?
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Neal Landry

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They work, but barely. Speed tests range from about .5 Mbps to 40 Mbps when sitting directly next to the AP with no other traffic. There will be intermittent complete losses of connectivity such that any students using Google Apps will not be able to work on their document until connectivity is restored.
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David Henderson

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And Ruckus support does not have any answers?
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Neal Landry

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I'm not certain what to do here. Are Chromebook users with 7260's out of luck? Surely, this isn't the first Ruckus has heard of this issue, is it?
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GWehe

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Our chromebooks are already at version 47.x.x.
Is there something special I need to do in order to upgrade our ZD1112 to the latest version of firmware?  I have downloaded version 9.10.1.0.59.  Is it as simple as pointing the ZD to the file on my PC?
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Michael Brado, Official Rep

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Prior to any upgrade, save a backup of your current configuration (Administer/Backup), and add your current version digits to the filename to remind you what version it came from.
ie.  GWehe-ZD1112_db_983014_111715_16_10.bak  (if you were on 9.8.3.0.14)

Second, read the Release Notes for the ZD 9.10.1 version you intend to upgrade to, and make sure all your AP models are supported.
Some Legacy APs like 2942/7942 are EoS.
https://support.ruckuswireless.com/documents/830-zoneflex-9-10-1-mr-release-notes

Then, from Administer/Upgrade, you click the Browse button and load the image you have downloaded to your PC,
and when prompted to save a backup, you can skip, and click Upgrade to continue.

The ZD will upgrade and reboot.  Your APs will reconnect and each get upgraded to the new ZD firmware version.
Watch from Monitor/Access Points page, as they go from upgrading firmware, disconnected, provisioning, to Connected.

A typical ZD1100 upgrade shouldn't take more than 15-20 minutes.
(Edited)
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Josh Hymer

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Are there any updates to the current 9.12.1.0 build 148 on the ZD3000?  Thnx
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Neal Landry

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Just to echo this question, should we be using the 9.10 firmware recommended in this thread?  What if we are using 9.12? Should we expect the same results?
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GWehe

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Just tried BETA 47.x.xxx. on one chromebook.  No change on my end.
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David Henderson

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We are right in the middle of evaluating Ruckus and Aruba for a complete overhaul of our wireless network next summer. We have a lot of Chromebooks with the Intel ac-7260 chipset. This thread certainly has me worried. Not sure if the problem lies with the chipset drivers or the Ruckus firmware
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GWehe

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All I know is that we have been waiting for Ruckus Support to get back to us for 2 days after sending them several Wireshark files....  Our wireless has been effectively DOWN for 2 weeks now.  That may have something to do with your decision.  It is NOT the chromebooks.  I took the same chromebooks down the hall in our building with OS46.x.x.x. and the grabbed an AP and the correct SSID and a good IP address in 5 seconds.  There is something going on with the AP's in another part of the building and Ruckus cannot figure it out.
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David Henderson

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So in one part of your building you have R500 APs and they work fine with the Chromebooks and in another part of the building you have R500 APs that do not work with the Chromebooks?
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GWehe

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That is correct.  Except they are not R500's.... and it is not just chromebooks.  I stumbled across this thread looking for AC-7260 issues....  Josh's issues were mimicking mine exactly.  After much trial and error is seems that the AP's zf7363, zf7055 sort of just stopped accepting traffic and refuse to connect.  we have done everything short of doing a factory refresh on the AP's themselves (unless a firmware upgrade does that, in which case we have).  Possibly I should open a new thread, but I am very much annoyed at this point and I may not be politically correct in my next postings so I need to be careful.
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David Henderson

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This nic was very problematic in PC laptops for many many months until Intel finally released a set of drivers that solved many wifi issues. Of course with Chromebook we are at the mercy of Google to incorporate drivers in a release of Chrome. If you have PC laptops with this nic and the drivers are up to date and you still cannot even connect to your Ruckus APs then it does seem like a Ruckus issue.
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GWehe

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Dave, I am not sure you understand.  It IS a ruckus issue. I can take ANY chromebook/laptop/ipad down the hall and connect the SAME model Ruckus AP in an instant using the same drivers and Chrome OS.  I CANNOT connect to two of the 23 AP's we have... even with Apple MacBooks, iPads, HP Folio Laptops and even my cellphone.
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David Henderson

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Yes it is a Ruckus issue. So you can connect a laptop/Chromebook/tablet to one Ruckus AP but when you take the same device down the hallway and attempt to connect to the exact same model of Ruckus AP, it will not connect? If that is the case then it is a Ruckus issue. Have they given you any idea what could be causing this?
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GWehe

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TO make a long story longer......
It appears that the Ruckus AP's do not like Cisco Switches.... at least older ones.  After many (many) hours or swapping this and changing that, testing different configurations, SSID's, channels, locations, LAN drops, POE injectors......  WHEW!

The AP location in question was attached to a Cisco CE500 Layer-2 switch (an older business class switch from around 2008).  With the exception of one other AP in the building, all other AP's are connected to newer Cisco WS2960 Layer-3 switches.  As soon as we place this offending AP onto a WS2960, it seemed to be happy, and yesterday it was reported to me that we had about 40 Chromebooks connected in the area with NO issues at all.  What is weird is that the (1) AP on another CE500 in the same hallway is running fine.... PLUS I have (10) APs over at another building that (I must check first) are likely ALSO on CE500 switches and are running fine.

We will need to do some more digging to document exactly which AP is connected to which switch to make a final determination if it is in fact the CE500 series switches in general or just this one CE500 switch that was the offender.

In any event, it took us about 3 weeks to figure it all out.  Now I can get back to my other help desk tickets which have been piling up.........

Have a great holiday season everyone.
Glenn Wehe
Montana
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Trevor Wright

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Hi,
Saw all the updates to my original post regarding Chromebooks thought and decided to revisit my toshiba 'problem' Updated ZD1100 to 9.10.0.0 build 218. Updated intel chip to 18.21.0 and observered 15 laptops logging on with no problems. This appears to be the first time we have had 100% success without pupils taking the laptops to another AP to get connected. Light at the end of the tunnel ?