Multiplicity Seamless / KVM mode stops working

from Stardock Forums

Multiplicity will work great for a random amount of time, and then it stops, without any interaction and will not start again.  The only thing i'll notice is the multiplicity program disappears from the systray.  Main computer is windows 10, and the other computer is windows 11.  I click on the check box, and it says it connected, but I cannot remote control the other PC.  I can connect with the PC in KVM mode, but it won't register any of the mouse clicks or keystrokes.  The only way i've found to fix it is to re-install multiplicity on the main PC, reboots on either PC don't fix it either.

multiplicity
5,857 views 4 replies
Reply #1 from Stardock Forums Top

Hello,
I have forward your problem/question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience.

Basj,
Stardock Community Assistant

Reply #2 from Stardock Forums Top

Hello,

Sorry to hear you are having trouble.

This sounds like you are detailing two different problems, yes?

Multiplicity will work great for a random amount of time, and then it stops, without any interaction and will not start again.  The only thing i'll notice is the multiplicity program disappears from the systray.  Main computer is windows 10, and the other computer is windows 11.  
End of quote

1) While very rare, this sounds like MP is crashing if its removed from the systray:

Check your Windows Event Viewer to see if that is the case.

I click on the check box, and it says it connected, but I cannot remote control the other PC.  I can connect with the PC in KVM mode, but it won't register any of the mouse clicks or keystrokes.  The only way i've found to fix it is to re-install multiplicity on the main PC, reboots on either PC don't fix it either.
End of quote

2) For clicks not registering, its almost always a firewall issue:

https://forums.stardock.com/486104/multiplicity-support-faq#movemousesecondary

Sean Drohan
Stardock Support Manager

Ashes of the Singularity II
Reply #3 from Stardock Forums Top

Since the last re-install it's been behaving better, I found out that I don't have to re-install it, I just have to restart the service and that fixes it most time, when it doesn't, rebooting will fix it.  The biggest problem I have now is sometimes it's laggy on the secondary machine.  they are both connected via ethernet and audio streaming is off, but I haven't gotten time to look at the troubleshooting laggy connections articles.

Reply #4 from Stardock Forums Top

Quoting darkytoo, reply 3

Since the last re-install it's been behaving better, I found out that I don't have to re-install it, I just have to restart the service and that fixes it most time, when it doesn't, rebooting will fix it.  The biggest problem I have now is sometimes it's laggy on the secondary machine.  they are both connected via ethernet and audio streaming is off, but I haven't gotten time to look at the troubleshooting laggy connections articles.
End of darkytoo's quote

Poor performance could also be seen if one \ both of the PCs is getting crushed by a heavy workload at any given time.

Sean Drohan
Stardock Support Manager