Hey all,

I have a really strange problem with OWA 2013. I'm migrating from EX 2010 to EX 2013. After I've migrated five testing users, it figured out, that access to OWA wasn't possible for all five users. Two of them could log on without any problems. The three others got a message "Something went wrong" with error "System.ArgumenException". I couldn't find any errors in eventlog. In IIS log, I see login with HTTP 302 and HTTP 200.

After checking permissions, inheritance and so on, it figured out, that it's a problem with the user password. When I check "User must change password on next logon" in ADUC, I get the corresponding password change dialog when logging in to OWA. After changing the password, the user is able to log in to OWA without problems. I checked this with the other users and that did the trick. I also tested to change password through ADUC, but without success.

So I can only log in to OWA 2013 after changing password through OWA. Anybody?

Thanks.