I experienced a similar issue, 3 months ago, on Xbox/store version.
You can take a look at these relatives topics, and see that this happen to many other users:
The problem seems to be linked to connection problems to the servers, and it is not very reassuring to see that it still remains.
At home, I replaced my CPL / Wifi installation with a real ethernet cable and since then I have hardly ever disconnected the servers. This probably doesn’t fix definitely the problem, rather mask it; and make it less frequent, but I remain very suspicious about the reliability of the datas from MSFS.