[Troubleshooting] The FIM server you have entered does not exist or is not running.
Had an issue where the FIM Portal was being installed on a separate server than the FIM Service.
Receiving an error message during the FIM Portal installation:
"The FIM server you have entered does not exist or is not running. Click 'Back' to enter a different server name. If you plan to install the FIM service on '<server name>' later, click 'Next' to accept the configuration and continue."
Found there was a network firewall between the FIM Service Server and the FIM Portal box.
Steps for Resolution
Verified we could access the FIM Service from the portal server by accessing:
http://<FQDN of FIM Service Server>:5725
Gathered network traces and found some ports were being blocked by the network firewall
Verified ports 5725 and 5726 were opened in the firewall
Opened DCOM port 135
Still had the error message during the FIM portal installation
Gathered another network trace and found there were RPC ports blocked
Opened RPC port range: 49152-65535
The FIM portal then was able to contact the FIM Service box and was installed successfully