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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.

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migrated from Jun 4 '12 at 14:42

This question came from our site for professional and enthusiast programmers.

Is Domain B in the intranet zone? If not it won't automatically login. Check your site to zone assignment policies.

Check this out:

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The site is in the Intranet Zone for all computers. – ncaudill Jun 4 '12 at 14:50
What domain is the user and computer located in when accessing Domain B? Since it works via IP double check your ADFS config, your relying parties may be wrong. – Brent Pabst Jun 4 '12 at 14:53
The site is sitting in Domain A. When coming from Domain B is where the problem occurs. The user and computer are both located in Domain B. The relying party appears to be correct. – ncaudill Jun 4 '12 at 14:55
I don't know anything about ADFS but I thought I'd ask anyway seeing as a Domain Trust is involved: What is the NetBIOS and FQDN names of both domains? What UPN suffixes are in use on each side? Could this be a UPN routing issue? – joeqwerty Jun 4 '12 at 16:08
@joeqwerty yea, I'm thinking along the same lines. Appears to be a trust related issue either at the DC level or Federation level. Not exactly sure why the IP works though, so UPN could be about right. – Brent Pabst Jun 4 '12 at 16:19

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