Spark - unable to contact search service

I have a “Server two Server” 2 domain Openfire environment. I’m trying to add the second server to my Spark Search service in Spark with the Add service button. I received the following error when adding the server “unable to contact search service”. I try adding the server at “”, “”, and still get the same error. the search service works fine for both domains and I can add a user from another domain via JID.

is there a way I can add the a second search service via config file? is there a way to troubleshoot this? i don’t see anything in the client spark logs on this nor the event viewer.

Any help would be much appreciated.

thank you