Key/Mouse works from one machine but not the other

[JBaba123]

I have 3 machines.

OfficePC
JoePC
DNSPC

I can use the M&K from OfficePC and DNSPC and it travels ALL 3 Machines just fine. But when I make JoePC the Server (use it's K&M) then I can get the mouse to leave the screens and enter the other 2 machines.  Weird thing is this was working just fine 2 days ago and I didn't change a single thing or install any Windows updates (that I know of).

So basically, the K&M work from 2 of the 3 machines but not from 1 of them.

By the way, I can see the layout of all 3 just fine from each machine. If I make a change like the Computer Name - it shows up on the other 2 right away.  So they are talking/connected.... I don't get it..

Any suggestions?

Thanks,
Joe

 

[McB15]

So... **Bump!!**
or... maybe not.
I was seeing the same problem, I've got a ThinkStation "MintXeon," and a Latitude "MintLap." I could control MintLap from MintXeon but not the other way around.

I typed up a very long response, bordering on a rant, and right before I hit Submit, I checked the firewall settings. Only 1 was activated, and I guess it was allowing inbound traffic to MintLap, but isolating outgoing connections from it.

Shutting off the firewall solved the issue for me, now I just have to figure out the open ports & permissions before I turn it back on.

Note that both machines are using Linux Mint 21.3 Cinnamon 6.0.4 Kernel 5.15.0-122  (same as Ubuntu 22.04) and Synergy v3.0.80.1-RC3

I don't know if that helps or not, but, thought I'd post it anyway.

Good luck!