ADFS Web Application error when deploy Trust

Question

Hello All,

I just post the issue here and hope someone could give me some suggestions. I tried to deploy ADFS web application proxy with ADFS and sync with Office 365 users identity. When I tried t deploy the WAP after the installation of WAP server. I know we don't need to put the WAP server with domain joined, howevre when I tried to set up the server, I got error " An error occurred while attempting to establish a trust relationship with the Federation Server"

I tried to check the ping ADFS server, it is OK, and also installed the same certificate from ADFS, any ideas?

TIA

Answer 1

Hello Henman,

Based on your description, first may I double confirm if you put the WAP server in a DMZ, please make sure that 443 port is opened in your local firewall, and also please try to modify the WAP server DNS ip points to your local DC(DNS) then see if it make any difference, thanks.

Moreover, please make sure the timezone in both ADFS and WAP server are the same ( within 5 minutes), if it is OK, in this case please try to login ADFS server and then open the powershell to run the following one by one

1. enable-ADFSEndpoint -TargetAddress /adfs/services/trust/13/Windows
2. Set-ADFSEndpoint -TargetAddress /adfs/services/trust/13/Windows -Proxy $true

After that please re-start your ADFS server and then re-configure the WAP server to see if you could establish the federation trust, also please make sure your Federation service name is the same as your ADFS and the internal/external url of the published are the same ie. https://adfs.domain.com etc.

Please feel free to share with me if you got any further updates, thanks.

Best Regards,

Oliver

Answer 2

Hello Henman,

Please feel free to let me know if you got any further updates, thanks.

Best Regards,

Oliver

Answer 3

Thanks Oliver for your quick reply. I will follow your suggestions to check my WAP and ADFS soon. But thanks in advance

Henman