[ubuntu] Failed to Download Repository Information

I want to update to Ubuntu 20.04LTS from 18.04.4LTS -- My first thought was to check software updater, but I keep getting a strange message about checking my Internet Connection.

Screenshot from 2020-04-26 11-58-05.png

I get regular updates from other bits of software that is installed and on a regular basis, but I don't know why I'm not being notified that 20.04LTS is available.

Screenshot from 2020-04-26 12-03-20.png

Any thoughts about how I would go about troubleshooting this issue?

Thanks,

David

Attached Images

• Screenshot from 2020-04-26 12-03-20.png (57.1 KB)
• Screenshot from 2020-04-26 11-58-05.png (25.6 KB)