Resolved Thunderbird cannot connect to internet.

I have purchased a new computer and loaded Firefox and Thunderbird. I let the internet configure the server settings and all looked okay. The trouble is that I get an error message saying "Thunderbird. Failed to connect to server imap.gmail.com".
Could you please help me connect to Thunderbird. I can get my mail when I go through google.com.
Incoming:Server Name: imap.google.com, Port 993, Security Settings: SSL/TLS, Authentication: OAuth2
Outgoing: Server Name: smtp.gmail.com, Port 465

Thank you for your help.

 

Hi Jean. have you set Thunderbird as your Default Email in Settings > Apps > Default Apps?
Remember to Reboot after making the change to make sure Windows follows your instruction.

 

Yes I had Thunderbird listed as my Default in email settings. Do you have any other suggestions.

 

You don't show it but I assume your Outgoing settings are identical to the Incoming?
e.g. SSL/TLS, Authentication: OAuth2.
Have you been asked to confirm acc password?

 

Any help here?
Thunderbird Unable To Connect To Your Imap Server

 

I reached out to help from Thunderbird but they claimed the problem lies with the internet and for $169.00 their technicians would solve it. I told them "no". I will start using Outlook, if necessary. I will give up for awhile