Ubuntu 20.04LTS can't get on the Internet anymore ?

[cybrsaylr]

Our House lost power, all electricity, for a few minutes today. My PC running 20.04 was on when power was lost and of course was knocked out. When electricity was restored a few minutes later after resetting house clocks etc. tried to reboot my PC in signature line below. PC restarted OK and 20.04 appears to run A-OK overall but can't get in internet anymore!

Did call my Internet provider who did tests on their end saying all is well on their end. Said problem must be in my PC or Linux OS. Did shutdown my PC and rebooted in Windows 10 which ran fine including getting on the WWW. Am now running Ubuntu 18 LTS on this PC and it runs fine including getting on the WWW, which I am doing now using Ubuntu 18 to post this issue here.

Anyone know what is needed to get Internet working again with Ubuntu 20? Hope there is an easy fix. Ubuntu 20 still ran great, up until this electricity power loss today.

[QIII]

Does your admin tool allow you to check for connected devices? Is the machine listed?

[cybrsaylr]

Not sure how to check that?