Arch Linux

mydeadvictoria

Member

Registered: 2021-09-13

Posts: 9

[SOLVED] Wi-Fi connection lost for 10 seconds & reconnected

I started having troubles with Wi-Fi connection a few days ago. The connection just drops and restarts in 5-10 seconds. I don't quite remember what I did, probably updated / deleted some package.

I also added this file for Docker (my work VPN forbids to use some addresses), not sure if it's relevant:

$ cat /etc/docker/daemon.json
{
  "default-address-pools":
  [
    {"base":"172.17.0.0/16","size":24}
  ]
}

Some outputs that might be useful:

$ iwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11  ESSID:"Dungeon Router 2.4GHz"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: F0:2F:74:38:D0:28   
          Bit Rate=144.4 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=70/70  Signal level=-31 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:30   Missed beacon:0

docker0   no wireless extensions.

vethee3a57e  no wireless extensions.

$ lspci -knn | grep -A2 Network
02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
	Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]
	Kernel driver in use: iwlwifi

I use forticlient-vpn (AUR) to establish my work VPN connection.

Also there's one more strange thing: Sometimes when I reboot the connection does not start automatically, systemctl logs say that the interface is already up. Can't show them because I didn't save the logs. But what I usually do is

ip link set wlan0 down

after which it complains that I need to remove /run/wpa_supplicant manually. And then it finally starts. I guess this thing started at the same time with the issue above.

What outputs do you need? Will provide as soon as possible.

P.S. It worth noting that all other devices work smoothly, no connection drops, everything is perfect.

Last edited by mydeadvictoria (2021-09-13 16:07:47)

seth

Member

Registered: 2012-09-03

Posts: 51,056

Re: [SOLVED] Wi-Fi connection lost for 10 seconds & reconnected

find /etc/systemd -type l -exec test -f {} \; -print | awk -F'/' '{ printf ("%-40s | %s\n", $(NF-0), $(NF-1)) }' | sort -f

Also your system journal (sudo journalctl -b)

The most common cause of the described symptoms are competitive network managing services which trip over each other.

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mydeadvictoria

Member

Registered: 2021-09-13

Posts: 9

Re: [SOLVED] Wi-Fi connection lost for 10 seconds & reconnected

The solution is described here: https://wiki.archlinux.org/title/Networ … onnections. Seems like the cause was power saving enabled. For everyone experiencing the same issue - try disabling power saving mode first and go without it.