Happens to me increasingly - using Safari. (Version 13.1 (13609.1.20.111.8))
Solved the problem by using Chrome !!!
Had to come in this way to report this.............
Hello Apple ?
MacBook Pro 15", macOS 10.13
How I solved the Safari 13 and High Sierra problem with idmsa.apple.com unsecure connection (all Apple logins)
https://discussions.apple.com/thread/251211674
You are welcome.
Thanks for the link. Added the certificate and it has worked.
Surprised Apple don't make it more public.
Can't login to Apple Support Communities ?
