When this condition occurs, users may be unable to establish a Terminal Services session to the server. User authentication of requests may also be unsuccessful, because the Forefront TMG server may lose its connection to the domain controller.
In this situation, Performance Monitor may display the following:
- The Backlogged Packets counter in the Forefront TMG Firewall Packet Engine may show a very large increase. This increase can reach a level of more than 1,000 packets in the queue.
- The Available Worker Threads counter in the Forefront TMG Firewall Service may suddenly decrease to zero.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 2700248 - Last Review: Jul 8, 2014 - Revision: 1