SYNERGY ERROR MESSAGE: cannot listen for clients: cannot bind address: Address already in use

Question

I've had synergy for a couple months. It works great between my PC (windows 10) and my laptop (also windows 10). However, I have another hard drive in PC that uses linux, and I can't seem to get my computer to work with synergy when I'm using the linux hard drive in my PC and my windows laptop. I always get the error message "WARNING: cannot listen for clients: cannot bind address: Address already in use" Anyone know why this might be happening?

Solution 1

The part where it says:

# Address already in use

Another program (maybe another copy of synergy) is using the synergy port; stop the other program or choose a different port in the Advanced dialog.

To see which applications have open ports, On Linux:

#netstat -tupan

On Windows:

Start>>All Programs>>Accessories>>System Tools>>Resource Monitor or Run resmon.exe, or from TaskManager performance tab

Solution 2

I was able to avoid rebooting as follows:

ps aux | grep synergys

Which will provide you with the pid, or process id, which you can then kill.

kill -9 1234

Be sure to substitute your pid for the "1234" above.

Then, restart synergy, and check that the server_ip has not changed on any connected machines.

Comments

[Mitch]

In my case ps aux | grep synergy showed that I had two instances open on my Ubuntu host. I must have killed the wrong one, so I ended up just closing all of them and then opening one and it fixed itself.