This problem always occours after some time if it occours. 30 Minutes or an hour everything is ok and then they say that connection was lost due to internet. But as i already told. My wife watches videos, my nephew was online too and when i immediately test my internet i got 50MBit, ping 18ms and can load every webpage i want. So i guess its the ms server. That would be ok if they repair the atc sound as soon as their server is ok again. But i always have to start the simulator again.
But i can look into it when i fly again although i already checked it some days before.