R510 Network Slow Speeds averaging 30-50 Mbps

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  • Updated 5 days ago
Hello,
I have 3 R510's in my home.  1 for each floor, ceiling mounted and placed central to each floor.   None of the clients on our network can ever achieve more than 50Mbps.   My PC which is 15ft around a slight corner from the AP got 30 Mbps down and 80Mbps up on an AP to Client speed test.

I am fairly technical, but Wi-Fi AP's is not my specialty.   I found this great thread where changing the setting from "performance" to "compatibility" helped tremendously.
https://forums.ruckuswireless.com/ruckuswireless/topics/settings-to-maximize-performance-2-x-r610-running-unleashed

I don't see anything like that.

I have 1GB cable modem, and am about to change my network to a Dual Wan 1Gb Fiber Connection + a 200Mbps Cable connection.  But none of this does any good if the clients are stuck at 30Mbps.

Any thoughts on how to optimize this network?

Thanks
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David Fry

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Posted 1 week ago

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joseph nguyen

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FYI, that post was referring to R610 and you have R510, big difference. 
What kind of speed is your ISP guaranteeing? Are you getting Fiber Optics to the home?  Do you have the latest firmware for R510s?  I had similar issue with Comcast and i debugged it for 6 months.  Ended up being multiple issues. Comcast was not delivering 1Gbps, but kind of talked about it.... Switch over to AT&T Fiber Optics at 1Gbps and also upgraded my APs(one upstairs and one downstairs), keeping my existing switch(new modem/router from AT&T), and upgraded to R610s. Now my wifi speed 490Mbps Down/500Mbps Up typically around the house.  Goes up to 550-600Mbps down at times.

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David Fry

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I had Charter come out and do a speed test and I saw them get 1Gbps at the modem.
I am getting Windstream fiber 1Gbps service soon moving the cable modem down to 200Mbps and will eventually have some simple load balancing.

The speed test results I supplied are from AP to client, should not be dependant on WAN network interface speed.
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joseph nguyen

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From my earlier experience, the R510s do not have great antennas or you may have lots of interferences.  How is your RSSI/SNR?  May want to play with it and find a less noisy(less intereference) channels.  Careful what these cable guys tell you, they might tell you one thing and showed you another. My experience with Comcast...
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David Fry

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Well they can't lie to me, I work for Charter :)  So I can call them out.  
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Andrew Giancola

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Ohhh 30mb/s is very slow for a device on wifi, especially with the proximity you're talking about. 
Iperf3 server on wired eth port of your 7150, and your Wi-Fi client device ( don't feel shy about posting driver info about that Client device) and test with `Iperf3 -c [insert IP address here, no brackets]` Which tests upload, then test with the `-R` switch, which tests download. you may consider kicking off all other clients from your AP first, just to rule out the possibility of a B client blowing up your Wi-Fi speeds, cuz as we know, once a B client joins, it slows the network down for everyone. THEN TEST!
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David Fry

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Thank you, I will take some time and review this
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Derk-Jan van Vugt

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I assume that all ap's are cabled to your modem/switch/router? So not with mesh.
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David Fry

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That is correct.    
Cable Modem -- eth --> Mikrotik Router -- eth --> Gb Switch -- eth --> AP's
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Derk-Jan van Vugt

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Oke and did you do a speedtest with your laptop directly connected with your modem? What is the up and down speed then?
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David Fry

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My personal test directly connected showed varying results 400Mbs to 600Mbps, the cable guy did a test to the CMTS (edge router) and the pipe is definitely giving 1Gbps, which is fine.

My concern is AP to Client.  Why would an AP to Client test only give me 30Mbps?
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David Fry

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Here are the iPerf Results...  This is windows to windows (best I can do).  Both Pc's are no more than 15 ft from their APs.    Server is upstairs AP and client is Main floor AP.

-----------------------------------------------------------
iperf3: interrupt - the server has terminated

C:\Users\[user]\Documents\Apps\iperf-3.1.3-win64>iperf3 -c 192.168.88.136
Connecting to host 192.168.88.136, port 5201
[  4] local 192.168.88.125 port 49687 connected to 192.168.88.136 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.01   sec  5.12 MBytes  42.4 Mbits/sec
[  4]   1.01-2.01   sec  5.75 MBytes  48.2 Mbits/sec
[  4]   2.01-3.01   sec  6.00 MBytes  50.5 Mbits/sec
[  4]   3.01-4.00   sec  3.75 MBytes  31.7 Mbits/sec
[  4]   4.00-5.00   sec  3.00 MBytes  25.2 Mbits/sec
[  4]   5.00-6.01   sec  3.50 MBytes  29.0 Mbits/sec
[  4]   6.01-7.01   sec   768 KBytes  6.33 Mbits/sec
[  4]   7.01-8.01   sec  3.25 MBytes  27.1 Mbits/sec
[  4]   8.01-9.01   sec  4.12 MBytes  34.8 Mbits/sec
[  4]   9.01-10.01  sec  4.62 MBytes  38.6 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.01  sec  39.9 MBytes  33.4 Mbits/sec                  sender
[  4]   0.00-10.01  sec  39.8 MBytes  33.4 Mbits/sec                  receiver

iperf Done.

C:\Users\[user]\Documents\Apps\iperf-3.1.3-win64>iperf3 -c 192.168.88.136 -R
Connecting to host 192.168.88.136, port 5201
Reverse mode, remote host 192.168.88.136 is sending
[  4] local 192.168.88.125 port 49700 connected to 192.168.88.136 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  5.56 MBytes  46.7 Mbits/sec
[  4]   1.00-2.00   sec  6.37 MBytes  53.5 Mbits/sec
[  4]   2.00-3.00   sec  6.32 MBytes  52.9 Mbits/sec
[  4]   3.00-4.00   sec  5.24 MBytes  43.9 Mbits/sec
[  4]   4.00-5.00   sec  4.48 MBytes  37.7 Mbits/sec
[  4]   5.00-6.00   sec  4.59 MBytes  38.6 Mbits/sec
[  4]   6.00-7.00   sec  4.65 MBytes  39.0 Mbits/sec
[  4]   7.00-8.02   sec  5.88 MBytes  48.6 Mbits/sec
[  4]   8.02-9.01   sec  5.67 MBytes  48.0 Mbits/sec
[  4]   9.01-10.02  sec  6.60 MBytes  54.9 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.02  sec  55.6 MBytes  46.6 Mbits/sec                  sender
[  4]   0.00-10.02  sec  55.6 MBytes  46.6 Mbits/sec                  receiver

iperf Done.

C:\Users\[user]\Documents\Apps\iperf-3.1.3-win64>
(Edited)
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Andrew Giancola

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You are a STUD! What FW are you running on your APs? And can you print your `netsh Show Wlan driver` on the test client?
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David Fry

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Current Firmware: 200.6.10.1.312


Netsh details
Interface name: Wi-Fi 2

    Driver                    : ASUS USB-N53 802.11a/b/g/n Network Adapter
    Vendor                    : ASUSTeK Computer Inc.
    Provider                  : Microsoft
    Date                      : 4/21/2015
    Version                   : 5.1.22.0
    INF file                  : netr28ux.inf
    Type                      : Native Wi-Fi Driver
    Radio types supported     : 802.11b 802.11a 802.11g 802.11n
    FIPS 140-2 mode supported : Yes
    802.11w Management Frame Protection supported : Yes
    Hosted network supported  : Yes
    Authentication and cipher supported in infrastructure mode:
                                Open            None
                                Open            WEP-40bit
                                Open            WEP-104bit
                                Open            WEP
                                WPA-Enterprise  TKIP
                                WPA-Enterprise  CCMP
                                WPA-Personal    TKIP
                                WPA-Personal    CCMP
                                WPA2-Enterprise TKIP
                                WPA2-Enterprise CCMP
                                WPA2-Personal   TKIP
                                WPA2-Personal   CCMP
                                Vendor defined  TKIP
                                Vendor defined  CCMP
                                WPA2-Enterprise Vendor defined
                                WPA2-Enterprise Vendor defined
                                Vendor defined  Vendor defined
                                Vendor defined  Vendor defined
                                Vendor defined  Vendor defined
    Authentication and cipher supported in ad-hoc mode:
                                Open            None
                                Open            WEP-40bit
                                Open            WEP-104bit
                                Open            WEP
                                WPA2-Personal   CCMP
                                Vendor defined  Vendor defined
    Wireless Display Supported: Yes (Graphics Driver: Yes, Wi-Fi Driver: Yes)
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Andrew Giancola

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One more please show your output for `netsh wlan show interface` wanted to see what band you were on, and what the channelization is.
That card... I _know_ that card, I've used them for YEARS and YEARS! USB 2.0, and OEM driver support ended in 2013! Do you have a different test card?
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David Fry

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There is 1 interface on the system:

    Name                   : Wi-Fi 2
    Description            : ASUS USB-N53 802.11a/b/g/n Network Adapter
    GUID                   : b9a77ae2-4570-4b70-9a78-1fe3dc2a97f9
    Physical address       : f0:79:59:74:c2:9b
    State                  : connected
    SSID                   : Bela_r510
    BSSID                  : 90:3a:72:08:31:f8
    Network type           : Infrastructure
    Radio type             : 802.11n
    Authentication         : WPA2-Personal
    Cipher                 : CCMP
    Connection mode        : Auto Connect
    Channel                : 11
    Receive rate (Mbps)    : 600
    Transmit rate (Mbps)   : 144
    Signal                 : 100%
    Profile                : Bela_r510

    Hosted network status  : Not available
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Andrew Giancola

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This one is tough, if this was my install, I would from here, I would switch to a different client, I can see you're on 2.4ghz, so the 40mb/s on a single channel seems about as fast as the standard would see. Plus or minus a few mb/s. Can you disable 2.4ghz on your AP and re-test with the same client? 
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David Fry

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Well 50mbps would be acceptible on 2.4ghz 802.11g or older, but I'm using 802.11n which should support 300mbps.    I'll try disabling 2.4 see what happens
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Andrew Giancola

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 I've never ever seen close to that on a single channel but my experience is my own. interested to see your results.
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David Fry

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I have a feeling you are right.  Without channel bonding, I think maybe 2.4ghz max is right around my current speed.    Let's see what 5ghz does
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David Fry

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Ok, forcing it over to 5ghz I get 155Mbps.. much better.  

thanks for your help
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joseph nguyen

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fyi, R610 on Ethernet
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joseph nguyen

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R610, on Wi-Fi
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John D, AlphaDog

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" 802.11b 802.11a 802.11g 802.11n"

Your wifi card is an 802.11n wifi card. 802.11n with 2 spatial streams won't get more than about 100mbit in the best possible conditions, so 30-50mbps in real world conditions sounds about right.

To get these kinds of 500mbit speeds you're seeing from others with the R510, your laptop really needs an 802.11ac or better wifi card -- the newer the better.
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John D, AlphaDog

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" 802.11b 802.11a 802.11g 802.11n"

Your wifi card is an 802.11n wifi card. 802.11n with 2 spatial streams won't get more than about 100mbit in the best possible conditions, so 30-50mbps in real world conditions sounds about right.

To get these kinds of 500mbit speeds you're seeing from others with the R510, your laptop really needs an 802.11ac or better wifi card -- the newer the better.
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David Fry

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Thanks John... I'm up to 150 so that is better for sure.  I'll get an 802.11ac adapter and see how we do.
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David Fry

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SNR for current client is 56 to closest AP and 49 to Main AP which is just below my computer on the 1st floor
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Syamantak Omer, Official Rep

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Hi David,

I don't want to generalize it but you could try tweaking below settings and see how much it can improve.

- Enable the OFDM.
- Set BSS min rate set to 12 Mbps.
- Enable band balancing and force clients to 5G radio.
- Disable overlapping channels on 2.4 G radio.
- Set channelization to 40 for 2.4 Radio and 80 for 5 Ghz (though it depends upon clien UE wireless capabilities what max speed it can achieve).
- Disable the self healing.
- Change scanning mechanism from channel fly to background scanning (set it to 600-1000 for 2.4 G and 600 for 5G).
- Enable 802.11N/AC only (Assuming that you don't have very old devices which only supports a/b/g and not n/ac).
- Set tx power to full (If it was modified to lower values manually).

Also I want to point that R510 APs can maximum support upto 867Mbps (if UE supports 802.11ac and connecting to 80MHz in ideal conditions).




Regards,
Syamantak Omer
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David Fry

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Thanks, I just got an 802.11ac adapter and my bandwidth is now around 200mbps.  With 30+ clients connecting (smart home stuff everywhere) as well as my wife working downstairs, I think this is a pretty acceptable rate.  I'm going to try the changes suggested above to test and see if there is any increase, I suspect anything at this point is incremental.

Thanks all
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Andrew Giancola

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Cool man, glad we could help you review. it's a powerful reminder that sometimes, what's written on the side of the box isn't what we get when equipment is put into production. Take care and be safe!