Ports Used by Multiplicity
After, make the connections again to see if mouse and keyboard actions are observed on any Secondary
If it works, turn the Windows firewall on, download the following file (on all MP PCs), and run the batch file:
https://cdn.stardock.us/support/uploads/MPPortFix.zip
That file will only work for Windows firewall. For any third party ones, here are manual instructions:
Make sure these firewall rules are enabled:
Rule Name Port/.exe
Multiplicity Service 30564
Multiplicity Clipboard 30565
Multiplicity Application (clipboard) Multipl2.EXE
Multiplicity Audio Service 30567
Multiplicity Remote Screen Service 30569 (For Multiplicity 3 only)
Multiplicity Application (Remote screen control
MPRDP64.EXE (For Multiplicity 3 only)
All ports are TCP. The executable names above are for whitelisting the applications within a software-based firewall (Windows Firewall for example).
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Allowed Apps
Also in Windows Firewall, all Multiplicity function exe’s need to be in ‘Allowed Apps’:
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Changing Multiplicity Ports
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Note the addition of the string value Port=17. You can choose what ever port you like here (excluding the know commonly used ones of course).
Primary - what
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itself uses
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Stardock\Multiplicity2\Security]
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OverridePortPort2 is the clipboard port. Again, use any port you like here.
SecondarySecondary
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Stardock\Multiplicity2\Security]
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OverridePortPort2 is the clipboard port. Again, use any port you like here.
Running a command prompt as admin and netstat -a will show that it is now listening on the new ports
Multiplicity Port Troubleshooting
For any connection issues, the path of least resistance it always a an uninstall \ reboot \ reinstall.
If that fails, please see Multiplicity Connection issues 101