Cause—On Forefront UAG activation, a timeout occurred and the Microsoft Forefront UAG DNS64 (DnsAlgSrv) service was not started. Warning: Serious problems may occur if you modify the registry incorrectly using the Registry Editor or another method. These problems may require that you reinstall your operating system. Modify the registry at your own risk.
Solution 1—Ensure that DNS64 has not been disabled from the registry:
Solution 2—Check the Windows Event Viewer for any Microsoft Forefront UAG DNS64 (DnsAlgSrv) related events and troubleshoot further.
Maheshkumar S Tiwari edited Revision 2. Comment: Added Tag