I have a dual boot system with Windows 10 with quick reboot turned off and Ubuntu 22.04.1 LTS. For past few few months I am unable to connect to 2.4 GHz wifi while being in Ubuntu but can detect and connect to 5 GHz wifi networks. On the windows side, I can connect to both 2.4 GHz and 5 GHz wifi smoothly. I have secure boot turned on. Here's the network adapter details :
:~$ iwlist frequency
lo no frequency information.
enp4s0f1 no frequency information.
wlan0 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
Channel 128 : 5.64 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
Channel 144 : 5.72 GHz
Channel 149 : 5.745 GHz
Current Frequency:5.745 GHz (Channel 149)
Please help. It is the same with other Linux distributions also. While trying to install them, 2.4 GHz Wifi would work 1 out of 10 times and after 2-3 restarts, it would stop working.
