Stops Network Manager on Ubuntu 20.04

[geekreflex]

After installation I get logged out and shown a black screen for a few minute before showing the actual lock screen. I noticed that the network manager wasn't running. Fortunately I was able to restart it.

sudo /etc/init.d/network-manager start

[DA-GM-RamiBitar]

RESTART THER SERVERS AND LET THEM TRY AGAIN