Hello,
I use ProDVB server on my NAS running on Windows 7 for a long time. It is always started with /NoGraph. In the last time I noticed an issue which I didn't observed before. When I connect to the NAS using Remote Desktop connection, the connection in my ProgDVB client to the server is dropped and I can't connect anymore. When I check the ProgVDB server, Prog Media Server item is missing in the menu Service. When I change a channel on the server, the item appears in the menu and I can connect again.
The issue appeared in last days, I didn't change ProgDVB version. What I remember - I just installed OpenHAB + Java on the server. Can you help me please? Logs attached.

"missing in the menu Service" mean no DVB sources on server ProgDVB. Check TV Sources.

no, TV sources are still there. I have USB dongle: {BDA} ASTROMETA DVT Filter -DVB-T and {BDA} ASTROMETA DVT Filter -DVB-T2. Both are present and Server disappears when I connect with Remote desktop. As I said, when I click another channel in the list to change it, the Server is back.

Logs looks good. Try x32 version of ProgDVB and x32 server. is it same problem?

Installed and tested x32 versions and it is same.