VIAVI TestCenter: Unable to install a speed license on a module - received error: Failed to Download Test Module License

When attempting to install a speed entitlement on one of the modules (see FAQ19305), after selecting the entitlement file and clicking Open, the following messages were logged. Install Test Module License Started to Running ExecuteAndWait: TestModuleLicenseDownloadFileCommand(Slot="192.168.1.1/2,192.168.1.1/4,",       FileName="C:\Program Files\Spirent Communications\Spirent TestCenter 5.11\Licenses\E12345678.json") Failed: TestModuleLicenseDownloadFileCommand(Slot="192.168.1.1/2,192.168.1.1/4,",       FileName="C:\Program Files\Spirent Communications\Spirent TestCenter 5.11\Licenses\E12345678.json") Failed: TestModuleLicenseDownloadFileCommand(Failed to Download Test Module License: CCommandErrorException       Internal error occurred during license install on 192.168.1.1/2,192.168.1.1/4,: CStcRunTimeError License       file is not applicable to Test Module. Please reinstall and/or request a new license file.) Install Test Module License Command Done! LicenseManager::DownloadTestModuleLicense() failed: CStcRunTimeError License file is not applicable to Test       Module. Please reinstall and/or request a new license file. Install license on to TestModule 7 failed with error: Failed to Download Test Module License:       CCommandErrorException Internal error occurred during license install on 192.168.1.1/2,192.168.1.1/4,:       CStcRunTimeError License file is not applicable to Test Module. Please reinstall and/or request a new       license file.. Complete: TestModuleInstallLicenseCommand(src="Install")

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