I've only tried mconnect on Android and on multiple devices it was hot garbage, seems that it's more mature on iOS but there's been reports of similar issues with mconnect on this very forum.
That aside kinda agreeing with @TheOldPresbyope that OP isn't making a lot of sense here, with the limited info all I'll suggest is to avoid mconnect and use a different UPnP client app.
That aside kinda agreeing with @TheOldPresbyope that OP isn't making a lot of sense here, with the limited info all I'll suggest is to avoid mconnect and use a different UPnP client app.