Yes, please refer to this document for doing so:
MP Port Change
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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Changing Multiplicity Ports
These are the keys you will need to add \ edit. PLEASE back up what you have now prior to changing anything. These are examples are for 64 bit machines.
Primary - controlling other machines
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WinKey + R, regedit, enter. Navigate to the following using the name of the Secondary machine you want to connect to; SDROHAN-TEST is the Secondary MP machine in this example
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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 -
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what it itself uses
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[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Stardock\Multiplicity2\Security]
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OverridePortPort2 is the clipboard port. Again, use any port you like here.
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Secondary
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Stardock\Multiplicity2\Security]
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