Authentication failed Google, AOL, Yahoo
I had this issue with my old mac, but I just got my new MacBook but it got the same issue, I can't add new accounts (google, AOL, yahoo), but I can add my Microsoft account and iCloud.
I tried to set the default browser safari, its updated
I tried to clear anything with google and gmail in keychains.
and my os is updated catalina 10.15.7
I am haveing this issue for over a week now and I really need to get my emails, calenders and other things.
thanks for your help in advance.