RTL8812AE stops using 5 Ghz due to wpa_supplicant 4 way key_mgmt_offload
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
wpasupplicant (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
On Ubuntu 20.04.1 LTS (GNU/Linux 5.4.0-53-generic x86_64)
RTL8812AE stops using 5 Ghz Wifi after a few days.
The 2.4 Ghz wifi (that was not used, but present in these days) kept working.
During reconnection, the 4-way Wifi authentication failed every time.
Usually, power down and up helps, but this did not give me additional information
I tried following, to no avail
1) stopping / restarting wifi from networkmanager
2)removing drivers, and reinstalling
sudo rmmod rtl8821ae btcoexist rtl_pci rtlwifi mac80211 cfg80211 libarc4
sudo modprobe rtl8821ae
3) restart wpa_supplicant
sudo systemctl restart wpa_supplicant.
4) restart networkmanager
sudo service NetworkManager restart
What fixed the problem was disabling key_mgmt_offload
sudo wpa_cli
set key_mgmt_offload 0
So apparently, the WiFi board froze into a state where the 4-way Wifi authentication could not be handled on the board itself anymore
affects: | gnome-flashback (Ubuntu) → wpasupplicant (Ubuntu) |
Today, the offload doesn't help
Might is be a problem with this type of card ?
https:/ /bbs.archlinux. org/viewtopic. php?id= 239695
https:/ /groups. google. com/forum/ ?_escaped_ fragment_ =topic/ linux.debian. bugs.dist/ _0FU5-1Twnk# !topic/ linux.debian. bugs.dist/ _0FU5-1Twnk
or with having the same SSID on 5 GHz and 2.4 GHz. /community. tp-link. com/en/ home/forum/ topic/1819
https:/
I'll try some more