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  1. Bug #1857775
  2. Comment #4

Comment 4 for bug 1857775

Revision history for this message
In , lukas.redlinger (lukas.redlinger-linux-kernel-bugs) wrote :

Created attachment 285407
dmesg

Hi!

WiFi infrastructure: 5x Ubiquiti UAP-AC-Pro, firmware 4.0.54.10625

With an Intel AX200 [I think also with 9000 series, but don't
nail me to this] iwlwifi is sometimes spilling my dmesg with "Unhandled alg: 0x707" on a WPA2-PSK/CCMP ESS. But only if I am connected to 5GHz.

In dmesg you see it stops if I roam to 2.4GHz, but starts again as soon as I roam back to 5GHZ.

Throughput on 5GHz is thus limited to some little kb/s.

bssid / frequency / signal level / flags / ssid
f2:9f:c2:f8:c6:f4 5180 -59 [WPA2-PSK-CCMP][ESS] AGuest
f2:9f:c2:f7:c6:f4 2412 -48 [WPA2-PSK-CCMP][ESS] AGuest

After 15 minutes it suddenly stopped. I tried roaming again. That led to "occasionaly getting it" as described in this bug report: https://bugzilla.kernel.org/show_bug.cgi?id=203593 (but whilst assoc; not whilst auth)

[Tue Oct 8 14:58:33 2019] wlp5s0: disconnect from AP f2:9f:c2:f8:c6:f4 for new auth to f2:9f:c2:f7:c6:f4
[Tue Oct 8 14:58:33 2019] wlp5s0: authenticate with f2:9f:c2:f7:c6:f4
[Tue Oct 8 14:58:33 2019] wlp5s0: send auth to f2:9f:c2:f7:c6:f4 (try 1/3)
[Tue Oct 8 14:58:33 2019] wlp5s0: authenticated
[Tue Oct 8 14:58:33 2019] wlp5s0: associate with f2:9f:c2:f7:c6:f4 (try 1/3)
[Tue Oct 8 14:58:33 2019] iwlwifi 0000:05:00.0: Unhandled alg: 0x707
[Tue Oct 8 14:58:33 2019] iwlwifi 0000:05:00.0: Unhandled alg: 0x707
[Tue Oct 8 14:58:33 2019] wlp5s0: RX ReassocResp from f2:9f:c2:f7:c6:f4 (capab=0x431 status=0 aid=6)
[Tue Oct 8 14:58:33 2019] wlp5s0: associated
[Tue Oct 8 14:58:41 2019] wlp5s0: disconnect from AP f2:9f:c2:f7:c6:f4 for new auth to f2:9f:c2:f8:c6:f4
[Tue Oct 8 14:58:41 2019] wlp5s0: authenticate with f2:9f:c2:f8:c6:f4
[Tue Oct 8 14:58:41 2019] wlp5s0: send auth to f2:9f:c2:f8:c6:f4 (try 1/3)
[Tue Oct 8 14:58:41 2019] wlp5s0: authenticated
[Tue Oct 8 14:58:41 2019] wlp5s0: associate with f2:9f:c2:f8:c6:f4 (try 1/3)
[Tue Oct 8 14:58:41 2019] iwlwifi 0000:05:00.0: Unhandled alg: 0x707
[Tue Oct 8 14:58:41 2019] iwlwifi 0000:05:00.0: Unhandled alg: 0x707
[Tue Oct 8 14:58:41 2019] iwlwifi 0000:05:00.0: Unhandled alg: 0x707
[Tue Oct 8 14:58:41 2019] wlp5s0: RX ReassocResp from f2:9f:c2:f8:c6:f4 (capab=0x411 status=0 aid=1)
[Tue Oct 8 14:58:41 2019] wlp5s0: associated