Wifi-qcom-ac breaks intel 8265 wireless driver

RouterOS Wireless Networking
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When using wifi-qcom-ac, sometimes intel driver crashes on receiving frames from miktotik router using wifi-qcom-ac.

With wireless driver that is considered legacy such thing doesn’t happen.

Relevant bugzilla page: https://bugzilla.kernel.org/show_bug.cgi?id=219856
In short, there’s a chance it can be related to MU-MIMO or beamforming.
It doesn’t seem to be possible to narrow it down further as I believe you can’t turn off one or another.

Whether or not it’s the issue with mikrotik sending bogus frames or intel driver not correctly handling something doesn’t matter in grand scheme of things. End goal is to find the culprit one way or another.

Mikrotik: RBD52G-5HacD2HnD
Wifi Card: Intel Corporation Wireless 8265

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Or, it could be the card itself ?
That’s a card from 2016 ?

I don’t see such issues using wifi-qcom-ac access points with Intel AX201 card.

1 Like
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Good for you I guess?

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I must have missed where it is stated that a wi-fi network card is to be considered obsolete after seven years and as such it is allowed to have buggy code that makes it crash.

Maybe I am strange, but I do have computers in service that date back to 2008 or before and I would be quite annoyed if some genius developer would decide that since they are too old, instead of correcting a bug would say “tough luck, bro”.

If the SAME card, regardless of its age, works with wireless drivers BUT crashes with wifi-qcom-ac the issue should IMHO be corrected.

@gudvinr
You should IMHO file a ticket to mikrotik support.

6

Oh but I still have a 2007 laptop I use as primary netinstall device under Linux. It connects quite fine to AX APs.

So the question might also be raised here if the problem is with Windows or … ?

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i had to revert hap-ax2 to 7.14.3 to avoid some strange disconnections, since that i also use 7.14.3 with hap-ac2 maybe can be interesting to see if this issue with 8265 wNIC is present also on 7.14.3

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I think that this is a driver issue, (I think even with the same model) I had a problem connecting it to a UniFi 802.11ax AP - if I enabled AX, card didn’t see the network at all (WPA3 was disabled, PMF too).