WCN7850 disconnects and reconnects in a loop

[Kalle Valo]

Johan Hovold <johan at kernel.org> writes:

> On Wed, Dec 11, 2024 at 09:35:37AM +0200, Kalle Valo wrote:
>> Johan Hovold <johan at kernel.org> writes:
>
>> > I'm seeing iwd repeatedly failing to connect with reason
>> > PREV_AUTH_NOT_VALID with WCN7850 on the Lenovo ThinkPad T14s (and the
>> > Snapdragon X1E CRD reference design).
>> >
>> > I first noticed this with 6.10 when starting to work on the Qualcomm X
>> > Elite platform, but never got around to investigating it. I've confirmed
>> > that the issue is still there with 6.13-rc1 and that adding
>> > ControlPortOverNL80211=false allows iwd to connect.
>> >
>> > Looking at Gregoire's logs now, it looks like the deauthentication
>> > reason is different:
>> >
>> > 	(Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)
>> >
>> > instead of
>> >
>> > 	(Reason: 2=PREV_AUTH_NOT_VALID)
>> >
>> > but the same control port workaround allows iwd to connect.
>> 
>> Is there a bugzilla report about this? Unfortunately I have not been
>> able to follow bugzilla lately due to MLO work but it would be still
>> good to file this (if that's not done already).
>
> Yes, sorry, I should have included the link (it was posted later in the
> original thread):
>
> 	https://bugzilla.kernel.org/show_bug.cgi?id=218733

No, I should have checked the bugzilla myself but have been too busy.
Thanks for the link.

> I only noticed that Gregoire's symptoms were slightly different when
> replying to this thread. Let me know if you prefer that I file a
> separate bugzilla report for the PREV_AUTH_NOT_VALID case.
>
> The exact same setup (kernel, distro and router) works fine with ath11k
> and WCN6855 (e.g. as found in the Lenovo ThinkPad X13s).

Good to know. We need to get this fixed ASAP, I marked it as P1 in bugzilla.

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