A Neuralynx support agent will provide you with a download link for a licensed version of Domain Time II via a zip file.

Extract this zip file to a known location and run the Setup.exe file.  You will be prompted to install either the Client or the Server, select the Server option to install.

Once installed, you can click the Configure button, next to the Install button on the Setup window.

Click the + next to the Advanced option from the Domain Time II window.  Click Import/Export and then the Browse button in the middle of the screen under the Import Settings from Template section.  Navigate to C:\Program Files\Neuralynx\Cheetah\Resources\NetworkDeviceMarshal and select the NlxDomainTimeIIConfiguration_default file, click Open.  If you are using a Microsemi PTP clock, you will select the other file option.  Click Yes when prompted to Confirm Import.

Close the Domain Time II Server window.  The computer clock and Domain Time II are now synchronized and the symbol should appear in the task bar.  If not, contact support for further troubleshooting options.