I've got a problem with my wi fi signal and devices. It disappears from time to time depending on booting.
Sometimes after running
rfkill list all I can find wireless device, sometimes I cannot.
I don't understand how linux may randomly boots with/without wireless connections. Moreover I don't know how to understand if it's hardware or software problem.
Solution that didn't worked for me
nmcli radio wifi on
iwconfig output if wireless device exists
wlp3s0 IEEE 802.11 ESSID:"TP-Link_B354" Mode:Managed Frequency:2.422 GHz Access Point: D4:6E:0E:D5:B3:54 Bit Rate=150 Mb/s Tx-Power=20 dBm Retry short limit:7 RTS thr=2347 B Fragment thr:off Power Management:on Link Quality=70/70 Signal level=-26 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:26 Missed beacon:0 lo no wireless extensions. enp2s0f2 no wireless extensions.
No wireless connections
Some wireless connections