Using the LabVIEW Shared Variable Server with remote computers and devices requires allowing certain programs and ports to pass through the Windows Firewall.
LabVIEW programs to allow through Windows Firewall
C:\Windows\SysWOW64\lkads.exe C:\Windows\SysWOW64\lktsrv.exe C:\Program Files (x86)\National Instruments\Shared\Tagger\tagsrv.exe
Even when using LabVIEW 64-bit, the directory for tagsrv.exe is still under the Program Files (x86).
For LabVIEW 32-bit, the lkads.exe and lktsrv.exe will be under c:\Windows\System32
Ports to allow through Windows Firewall
- TCP: 2343, 59110-59115
- UDP: 2343, 6000-6010
For the TCP ports, you must open one port above 59110 per “per application,”–by opening 59110-59115, we assume that no more than 5 applications are running concurrently.