Strange wifi issues after 25.11 upgrade

Help
1

I’ve noticed a strange issue after upgrading several laptops to 25.11

After sleep (s2idle) wifi connection may become unreliable. (not always)

if i run ping - i see significant packet loss, this happens over a couple of minutes, and then fixes itself.

but even after it “fixes itself” if you run ping - there is somewhat around 1% of packet loss.

If at any point you just disconnect and reconnect to the same wifi network - packet loss goes to 0% and everything works fine.

Tested on several wifi networks, on 2 laptops.

Is this some known bug?

2

I would be suspicious of Wifi going into powersave mode as the root cause here, based on presentation. What hardware do you have? It’s possible to to disable that, if it’s on.