I have an unattended remote machine that runs Ubuntu 22.04.
My local machine runs Ubuntu 23.04.
Both runs Anydesk 6.2.1.
On the remote machine no applications run but Anydesk service.
If I connect to the remote machine just after it started I have a very good response time. Instead, if I connect after - say - a couple of hours it takes seconds to refresh the screen.
Here what I did to find out the reason of the issue:
check the network speed (speedtest.net) of local and remote machines, before and during the issue. No problems at all: about 60M/15M at any moment.
check the CPU/RAM load on both machines: again nothing wrong. On the remote machine the CPU was about 4-5% and RAM 30%:
$ free -h
total used free shared buff/cache available
Mem: 7.6Gi 1.6Gi 3.9Gi 352Mi 2.0Gi 5.3Gi
Swap: 4.0Gi 0B 4.0Gi
tried to restart the Anydesk service, but it didn't fix
it is enough to logout/login to recovery the responsiveness, but after few minutes again it slows down too much
I'm asking this question here since this issue raised few weeks ago, I guess after an Ubuntu update (but I cannot be sure). Before it always worked fine.
Is there anything I can check or try to find out the cause?