Telus Gmail Security Alert at EVERY Logon

Recently I have been getting a Google Security Alert at EVERY logon to my Telus Gmail account. This is happening on RESTART/REBOOT of the following devices:

1. My Windows 10 desktop
2. My Android telephone
3. My Android tablet
4. My Linux desktop, and
5. My wife's Linux desktop

When I Check Activity and verify that it really was me that logged in Google goes away happy. UNTIL the next logon?This is annoying!

To my knowledge nothing has changed since this began a week or 2 ago.

Thoughts appreciated!

Rick