Yesterday, we reported of wide spread Google AdSense login issues. It seems like after receiving more information from Google on the matter, it might be two separate issues.

One is a standard login issue for some accounts and the other is an issue with accounts that need to be migrated off their original email accounts.

The second issue is known as a “migration loop” issue and there is a Google AdSense Help thread specifically about that, where an AdSense representative shares how to fix the issue for now:

There are many threads on the topic, and here are some of them.

Forum discussion at WebmasterWorld and a few at Google AdSense Help.