Im in the process of testing trusts so i can migrate users from one root forest domain to another. I have two domains abc.com and 123.com. I have setup DNS so that each domain has a secondary copy of the primary zone. This works fine and I can see it replicate across. I then went to add the trusts. on abc.com i added the trusts and went to validate, this worked fine, however after doing the same process on 123.com I keep getting a popup asking for the username and password for abc.com domain. Ive put in the correct username abc/administrator and the correct password and the box keeps coming up. Is there something ive missed?
Thanks for your help