RTL8188EU
I use TP-Link TL-WN725N V2 Nano USB Wireless Dongle. After manually disconnecting from the network in Network Manager GNOME GUI, it became impossible to connect to the WI-FI network again.
cat /var/log/kern.log | grep 8188
pr 12 17:44:48 cz-i5 kernel: [ 34.594520] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
Apr 12 17:44:48 cz-i5 kernel: [ 34.596499] Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
Apr 12 17:44:48 cz-i5 kernel: [ 34.628612] usbcore: registered new interface driver r8188eu
Apr 12 17:44:48 cz-i5 kernel: [ 34.654041] r8188eu 1-5:1.0 wlx503eaa3025b3: renamed from wlan0
Apr 12 17:44:56 cz-i5 kernel: [ 43.094133] R8188EU: indicate disassoc
Apr 12 17:44:57 cz-i5 kernel: [ 43.472565] R8188EU: indicate disassoc
Apr 12 17:45:01 cz-i5 kernel: [ 47.583505] R8188EU: assoc success
Apr 12 17:45:01 cz-i5 kernel: [ 47.590064] R8188EU: indicate disassoc
Apr 12 17:45:01 cz-i5 kernel: [ 47.685286] R8188EU: assoc success
Wireless network selector in GNOME does not display a list of available WiFi points. Turning wifi on / off in GNOME, pulling out / inserting TP-Link Dongle did not lead to anything.
Workaround from the article Getting Realtek 8188EU Wireless Adapters (and possibly other wireless Realtek chipsets!) worked. https://www.thelinuxrain.com/articles/getting-realtek-8188eu-wireless-adapters-to-work-in-linux-and-possibly-other-wireless-realtek-chipsets