I can't register ArcGIS Image Server in web

[AndrewMurray4]

Hello there!
I can't register ArcGIS Image Server via ArcGIS Server Manager. I always get the error:
Unable to register ImageServer Unable to connect to ImageServer on host : localhost Port : 3982

I'm using now ArcGIS Server for Windows (Java) .The ecp-licence is fine, but Image Server do not work.
Can this problem depends on the .NetFramework? or something else.



Please help.

[MarceloBorsoi]

Insert the ArcGIS Server's name or IP address in "Server Manager allow list" from ArcGIS Image Server Manager.