An issue with wifi.
On first login after restart, it prompts for password to the wifi (which I don’t remember), after I closed the prompt, wifi is not connected. I manually connect to the wifi and it connects without asking for password.
This may be due to networking services loading before your keyring e.g. KWallet or Gnome-Keyring.
Some (privacy-filtered*) system info may be helpful:
inxi -zv8
Cheers! 
* Using the short-form -z option or long-form `–filter`` option removes sensitive info such as MAC addresses, etc. .