Intermittent issues with Atheros QCA6174 on XPS 13 9380

Martin Michlmayr tbm at
Mon Nov 29 22:35:59 PST 2021

* Martin Michlmayr <tbm at> [2021-11-23 20:09]:
> I'm experiencing intermittent wifi issues with an Atheros QCA6174 on
> an XPS 13 9380 notebook.  I started pinging my AP and noticed that
> ping times go from <10ms to >10,000ms when this happens.
> 64 bytes from icmp_seq=1154 ttl=64 time=3.18 ms
> 64 bytes from icmp_seq=1160 ttl=64 time=8572 ms

Does anyone have any idea about this issue or what further information to
provide so you can look into it?

(I've used a USB wifi dongle the last few days and haven't experienced
this issue, so it's definitely a problem with my Atheros chip and not
with my AP.)

Martin Michlmayr

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