Unable to connect to azure from my laptop unless I hotspot first.

I tried az login which just hangs on ‘Starting new HTTPS connection login.microsoftonline.com:443’ seen a suggestion online to try python -c "import requests; print(requests.get('http://login.microsoftonline.com/').status_code)" and get a 200.

Mysteriously I connect my laptop to my phones hotspot and I’m able to connect, and when I switch back to ISPs router connections that worked on my hotspot still work but those I didn’t test on my hotspot still don’t work.

Still unable to az login. I could blame my router but if it’s successfully working for resources that I assume were ‘reset’ during hotspotting then I feel its more my setup needs a big reboot to start from scratch. Any suggestions appreciated.