Why does Remote Desktop Connection stop working?

Question

Windows

The problem is, maybe someone came across.
server with - Windows Server 2019, Remote Desktop Service started.
When the server boots up, I freely connect to it from the local Win 10 machine via remote desktop connection, everything works fine all day long. But! I come the next day and when I connect, this message pops up:


Restarting the server helps, I reboot and everything is OK, I connect again for a day. I looked at the service after the error, remote desktop is running. What nonsense? Where to dig?

I looked at the RemoteDesktopServices-RdpCoreTS log,
for example yesterday at 17:55 it gave an error Failed GetConnectionProperty in CUMRDPConnection::QueryProperty at 2884 err[0x80004001]
Then a series of warnings appeared: TCP socket write operation failed, error 121
Could this be the problem? Google writes about server 2016 and an update to it .... xs