ZD1000 + 7962 + 9.3.4 build 21 Issues

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Greetings,
First off, I'm well aware that the ZD1000 is EoL - I really just want to see if anyone else is or has experienced these issues, or may have some suggestions. That said, I have observed an interesting pattern with the combination of a ZD1000 with 7962 APs all running 9.3.4.0.21.

First off, certain devices intermittently won't see or be able to connect to any SSIDs being broadcast by 7962 APs with this firmware version. WPA and other settings don't seem to matter, and it only affects random devices (Nexus 5s, Samsung Notes, Nest thermostats, Roku media players so far), and only when broadcast on a 7962 AP - the same ZD configuration on a 7363 or 2942 work fine every time with the above listed devices.

The second issue I've noted is the Automatic 1/6/11 Channel Selection seems to be ignored on all AP models with this firmware. Each AP Group is configured to "Auto" Channel Selection between 1,6,11 per the GUI, and I have attempted setting it via CLI as well - the setting appears set in both instances, but APs are frequently seen on any of the twelve channels.

Finally, I set up a spare ZD1000 in our lab, factory defaulted it, upgraded to 9.3.4.0.21 from some older version, added a few APs and each of the above scenarios are repeatable, so I don't think it's anything in my config in the 'in production' device'.
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James Maslen

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Posted 3 years ago

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Hoang Tung

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Hi,
From what I know is ZD1000 can be updated to 9.5. You can try update ZD to that firmware.
About your first issue, I think it's better if you could upload screenshot of your SSID configuration.
The second issue, how far away from each APs? You should check the environment such as interference, noise.... 
The last issue,try to update to 9.4 then 9.5 firmware version and see what happen.
(Edited)
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James Maslen

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Hello and thank you for your reply. Per the ZD1000's EoL statement, "ZD1000 hardware limitations
prevent upgrade to 9.4 or later software releases. The last supported software will be a 9.3 Maintenance Release."

So it would unfortunately seem we cannot upgrade due to this.

As for the other issues, as I mentioned, the issue is specifically and verifiably isolated to just the 7962-model AP when controlled by a ZD with this firmware. Additionally, we have surveyed the property as part of our services, and signal coverage is excellent as designed, and interfering signals at a minimum in both bands. All clients are well within range of an Access Point ~15-20 feet horizontally and vertically.
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Hoang Tung

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Hi,
Have you try to manual assign channel only on 2.4GHz?
I faced this issue before, the devices can't see SSID or on wireless connection the SSID have a red cross line. Is that what you are facing?
If yes, I think you would change your authentication types. This issue is caused by driver version of the devices. How did you configure your WLAN? Can you upload some screenshots?
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Monnat Systems, AlphaDog

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Hi James,

As it was pointed out by other members, devices intermittently not able to see SSID is primarily because that AP was holding off its beacon transmission. this happens because that there is any other AP or device consistently transmitting on the same channel as yours. this is indication of noisy environment.

As you mentioned that you got ZF7363, 7962 and ZF2942 in your network and these must be set out in different physical location so if issue is location specific where AP is 7962 then its right that you will not see this issue in other areas and in the LAB.

Is there a neighbouring Ruckus AP or rogue AP also on the same channel? If yes, then advice to re-plan it
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Monnat Systems, AlphaDog

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for your second issue,

As far as i know - when Auto channel change feature based on background scanning is used then it will select channels based on 1,6,11 etc

however when Auto channel change feature based on channelfly then any channel out of all channel can be selected.

what do you see in your ZD for this? Take a look at below screenshot.

http://pbrd.co/1AZvFRh
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Michael Brado, Official Rep

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I'll pitch in, that yes, 9.3.4.0.21 is the last release for ZD1000. 
No, we have not seen where 7962 in particular had client SSID visibility issues that other models didn't. 
And yes, if you specify Channelfly as your global Self-Healing method on 2.4G, having 'Auto' under the AP Group Channel will utilize all channels 1 - 11.
Note: While Channelfly will employ all available channels, AP Group "Auto Channel Selection" only shows a channel 1/6/11 dropdown choice.
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James Maslen

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Hi Everyone,
Sorry for the delay, I stopped getting email updates for this thread! And thank you for your responses.

ChannelFly: ChannelFly is enabled, yes. When I re-enable Channel Scanning, all 2.4Ghz channels now follow the three-channel plan as expected, so that certainly does appear to be the case here. Forgive my ignorance, but did this behavior change after 9.3? I have other sites with ZD3050's running 9.7.2+ with ChannelFly enabled and auto-selecting from 1,6,11 per their Group configuration.

Monnat, I definitely agree with your assessment in theory, but I'm pretty hung up on that the issue with intermittently seeing the SSID in certain devices, has completely dissipated since replacing all 7962's with 7363 APs.

Regarding my testing methodology, I did not run all three model of APs at once - each was brought online one at a time to test everything I have described. Standard operation of this network is three APs, staggered vertically and spaced horizontally.

As for the building, it's a greenfield install in a primarily brick-exterior building isolated from most other buildings in the area. For what it is worth I have AirMagnet + Spectrum XT surveys that show low interference in both bands, at least at the time of the survey.

I'm going to do some additional testing in our lab (completely different location) with everyone's input in mind, just to be sure I'm not missing anything - I'd like to see what the behavior of a standalone 7962 on the same and higher firmware versions.
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Monnat Systems, AlphaDog

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James,

I started using Ruckus since 9.4 however while researching about some technical issue and digging the archives of Ruckus i learnt that channel fly channel change tech was introduced before 9.3 version.

Having said that it has gone through lots of changes and improvement since then.
Cheers
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James Maslen

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Well like I said, I have other sites with ZD3050's running 9.7.2+ with ChannelFly enabled and auto-selecting from 1,6,11 per their Group configuration - it really seems that this changed after sometime after 9.3 - 9.7 but I'm sure you could test that too with your ZDs.
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Michael Brado, Official Rep

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ChannelFly is available in 9.3 for ZD1000s too.  Check you AP Group, where you may have excluded channels other than 1/6/11.
CF looks at non 802.11 RF interference, that Background Scanning alone does not, but with the channel selection options, you can
restrict CF to use only the same 1/6/11 (although using all 1-11 should provide 30% better capacity).