Hi all,
The error message "Federated server not available" occurs, and the Analyze and Publish button are grey-out (not clickable) when trying to share a map layer from ArcGIS Pro to the connecting ArcGIS Server. The operation steps: Right click the layer -> Sharing -> Share as Web Layer.
Configuration is as follows:
- ArcGIS Portal 11.5 (to provide license to ArcGIS Pro)
- ArcGIS Server 11.5 (not federated with any Portal)
- Link to 11.5 Server is created and registered in ArcGIS Pro.
For your information, Share as Web Layer raises error,
but right click the Server link on ArcGIS Pro then Publish -> Map Service is ok.
Have anyone seen similar error in 11.5 (or any earlier version)? I check the documentation but did not find any requirements that a Server must be federated before sharing a Web Layer.

Many thanks.