Yes
I was able to get in thru ESO launcher, however, I do not own Morrowind expansion and had my acct there prior to
agreeing to link thru Steam.
I really regret going thru Steam
2 friends are getting the same. Most of my guild(s) are offline, so this thread will probably blow up and be replicated soon. I am still in, so it does not seem to be affecting those already logged in.
I'm on Steam too and the first error I got was that my acct could not be associated with Steam, or something along that line. Ever since its been "Unexpected internal error".
I think Steam is having some issues, and the steam servers need to be working for ESO to work? I don't know.
No they don't, however you do have to bypass the steam application's login process. (dive):\Steam\steamapps\common\(ESO folder) and use the executable there. It will bybass the steam login as well, so you will need to log in manually, the same as you do into your account on the website. It can also bypass the launcher so you won't get updates when they come. So use this as a temporary measure.