When you say they are able to add each other, do they get a request at that point, to allow subscription from another user? Probably not. I don’t remember seeing Waiting for authorization in Spark. Maybe that’s on the Jitsi side? Can you try with two Spark clients? So in Admin Console your XMPP domain is domain.com?
If your xmpp domain is ‘domain’, you should put ‘domain’ in the Domain field in the clients. Of course, ‘domain’ should be resolvable in the network. If you want to use ‘domain.com’ as your xmpp domain, then i suggest starting from scratch and set it like that in the setup process.
Instead of a re-install (instead of starting from scratch) I tried to change the property for the XMPP Domain Name from “domain” to “domain.com” and that seemed to work! . . . Genius I’d say . . . Thank You!
I’m going to do some more testing but so far that seemed to fix the problem with Spark and with Jitsi.
If it all works after testing I’ll mark it off as the correct answer.
Thank you again for your quick response and insight.
I figured that in the testing phase it should be easy to start over Renaming the system property is an option, but not for production, when some users might already have added users with the older domain name.