I do have the same Problem as glenb83.
Connection is okay, I have a green light. Remote part via WifiRemote works well.
But everything else gives me the error "could not connect to service". I checked IP Adress, Username and password several times. But still no connection to.
And my setup is a classic single seat, one HTPC with server, client and all media files, nothing fancy.
Can anybody point me in the right direction? I guess I made something wrong with MPExtendes configuration.
not sure if this will help but some users on here have said that they changed the host from a name to ip adress and it worked for them? also are you putting in the details manually or via qr scan?
Put the ip address of the mediaportal machine as username in mpextended you mean? I will try it when I get home.
I am putting the details in manually.