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A few days ago I upgraded 20.04 -> 21.10 -> 22.04 and noticed that after suspend there's no internet connection over wifi. Only reboot helps. Tuning off and on wifi drivers by modprobe -r iwlwifi doesn't have any effect. I tried kernels 5.13, 5.15, 5.17.5, 5.18.6 - no change. Tried restarting NetworkManager.service - same behavior.

Here' s lspci -v output pastebin

Here's log of dmesg -TW pastebin (I was connected to vpn and left it to enter sleep mode. After logging in there was no internet over connected wifi and the following log.)

One more, longer, log from last night - pastebin

UPDATE: It's related when I had VPN connection turned on. If I let it got into sleep on regular wifi connection, internet access remains after suspend.

Noteworthy: After suspend there's no connection neither via VPN, nor without it.

Michael
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2 Answers2

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Firstly, check for connections left by the killswitch, or ipv6 leak protection.

nmcli connection show --active

check for any of such networks then

Delete them respectively.

nmcli connection delete <Connection name>

K-man-null
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I had exactly the same problem with my setup, Mint Cinnamon and Private Internet Access VPN.

The solution on my system was to quit the VPN client. Find the VPN daemon pid with

"ps -ax | grep pia-daemon"

kill the daemon with

"kill -9 <pid>"

and then restart the pia client which restarts the daemon. Internet then works fine.

Someone better than me at command language could probably put this is a automated script.

RoyC
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