Performance drop and client identification issues after 1.1f update

Access Points
1

I updated to 1.1f and everything seemed fine but I got home today and my computer is only getting around 70Mbps up and my iPhone is getting around 100Mbps. Normally performance has been in the high 200s to mid 300s. I have also had the AP drop out and try to revert back to its old IP which I changed over the weekend and have rebooted a few times since. The other issue I am seeing after the update is my UDM-Pro cannot identify the clients coming from the AP anymore. The UDM-Pro says I only have 14 clients and the AP has 42 connected currently.

I tried rebooting but the performance and client identification issues are still happening.

2

@JRosen Can you ensure that the AP’s link is 1 Gigabit, and not 100 Mbit? Sometimes devices will establish a slower link speed, usually depending on the quality and distance of the ethernet cable. I’m afraid I can’t debug why the UDM-Pro wouldn’t be seeing the clients it’s serving, but a copy of the system log from it might be informative.

3

@Alta-Jeff I can confirm the AP is on a 1G link. I set the port speed to 1G as well to confirm it wasn’t an auto-negotiation issue.

4

I just upgraded my ap to 1.1f as well, and endpoint wireless speeds plummeted from 500-800mbs to < 100mbps. Can confirm AP is connected to switch at gigabit link speed. Nice touch to the alta team for including iperf3 on the AP. I can confirm ap does get > 100mbps to a device on the wired network.

root@Alta:/tmp/log# iperf3 -c 172.16.25.11
Connecting to host 172.16.25.11, port 5201
[  5] local 172.16.91.104 port 57466 connected to 172.16.25.11 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  55.2 MBytes   463 Mbits/sec    0    369 KBytes
[  5]   1.00-2.00   sec  51.7 MBytes   434 Mbits/sec    2    407 KBytes
[  5]   2.00-3.00   sec  56.6 MBytes   475 Mbits/sec    0    345 KBytes
[  5]   3.00-4.00   sec  55.7 MBytes   467 Mbits/sec    0    402 KBytes
[  5]   4.00-5.00   sec  56.5 MBytes   474 Mbits/sec    0    341 KBytes
[  5]   5.00-6.00   sec  52.6 MBytes   442 Mbits/sec    0    311 KBytes
[  5]   6.00-7.00   sec  55.7 MBytes   468 Mbits/sec    0    390 KBytes
[  5]   7.00-8.00   sec  57.9 MBytes   485 Mbits/sec    0    440 KBytes
[  5]   8.00-9.00   sec  55.7 MBytes   467 Mbits/sec    0    455 KBytes
^[p[  5]   9.00-10.00  sec  57.1 MBytes   479 Mbits/sec    0    460 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   555 MBytes   465 Mbits/sec    2             sender
[  5]   0.00-10.01  sec   554 MBytes   464 Mbits/sec                  receiver

Edit: I upgraded from 1.1d to 1.1f

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5

The changes are fairly minimal between 1.1d and 1.1f, and we’re definitely not seeing any performance regressions in our own testing. Can you double check that you are on the same channel/bandwidth as before? If you can obtain a wireless packet capture, I should be able to help understand further.

6

Just sent over the logs and capture I ran last night. Let me know if you need anything else.

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