Sometimes when installing a FlexNet license server, it will not connect to the PTC server even with a proper license file - showing an "Unavailable" status (shown below).
This can be caused by many reasons, but the best way to troubleshoot is to manually stop the Windows Service named "lmadmin_ptc" and uninstall FlexNet. When trying to uninstall FlexNet, you will get the following error:
If you receive this error regarding a missing DLL file, you have to install the Microsoft Visual Studio 2013 Runtime Libraries (x64), which can be downloaded here.
If you receive a similar error but because of MSVCP100.dll, you need to install Microsoft Visual C++ 2010 Redistributable Package, which can be downloaded here.
Other versions can be found on Microsoft's developer portal.
Once that installs, you can do a proper uninstall of the FlexNet application.
The Windows service of lmadmin_ptc will likely still be running after the uninstall, so unless you do a restart of the server or computer you will need to manually delete this. Open up a command prompt and run sc delete lmadmin_ptc - this will manually delete the service.
Now, do a reinstall and setup of the FlexNet application for it to work!
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