We have an ADFS test enviroment set up, but we are running into issues with login prompts. If we browse to ADFS from Domain A we get a token sucessfully from ADFS, however when we browse from Domain B we are getting prompted for credentials. Domain A trusts Domain B but Domain B does not trust Domain A. The weird thing is, if we replace the full domain name with the server's IP address we can sucessfully get through from both domains. I feel like this should be a really simple solution, but we're stumped.