The Firewall service failed to apply the Network Load Balancing configuration on the local computer.

Details
Product: Internet Security and Acceleration Server
Event ID: 21107
Source: Microsoft Firewall
Version: 4.0.3443.594
Component: ISA Server Services
Message: The Firewall service failed to apply the Network Load Balancing configuration on the local computer.
   
Explanation
Changes made to the Network Load Balancing configuration could not be saved. This event may be caused by any of the following:
Low memory resources.An internal error occured during Windows NLB configuration.The Properties page for a network adapter (connection) is open on any array member.NLB was previously configured for the operating system.
   
User Action
Close any memory-intensive applications to free memory. You may need to add additional memory to the computer.Check the System event log for Windows NLB events. This may help to identify Windows NLB problems.If the properties page for a network adapter (connection) is open on any array member, close it and restart the NLB service.If NLB was previously configured for the operating system, completely remove the NLB configuration and restart the NLB service.
For more information about NLB see Network Load Balancing topic in ISA Server Help.
For more information about Microsoft implementation of load balancing protocol, see the Network Load Balancing (NLB) topic in http://msdn.microsoft.com.

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