Hi everyone! For supporting IS0AGA I also have this problem and maybe other twenty OM in Italy that I know..
I try to explain about the italian national network on D-Star.
Maybe only in Italy we have different XLX connected together creating a complete network around all our country (
The problem appears only in this network and not to other simple Reflector, like REF080 or REF001 and it does not depend on different internet connections (3G/4G, ADSL, Fiber).
When it happens you must only switch off and try later.
I Tried to connect at the same XLX to the other guys in QSO, but nothing changed and the problem is only during listening.
In any case I'm satisfied about openspot, but for this problem I was obliged to buy a Dvmega to use it in Dstar.