If you can't log in to the game because it times out then gives you the 301 error code, try this:
Disable all of your add-ons. To do this:
Documents/Elder Scrolls Online/live/Add On Settings and:
Change all of the numbers from 1 to 0.
When you go to close out the document, you will be given a choice to make the changes. Choose to make the changes.
You should be able to get into the game now. Sucks to have to do this, but hell, if you can play, then thats not all bad.