Bidirectional Affinity Settings Remain After NLB Is Disabled
Issue: If you use ISA Server with integrated NLB mode, and then stop using integrated mode or uninstall ISA Server, the bidirectional affinity setting for NLB remains in place. This can interfere with future NLB configurations. Evidence of this issue can be seen in the system log events. For examples, see Bidirectional Affinity Conflict Scenarios.
Cause: ISA Server does not remove the bidirectional affinity setting from the registry when you turn off integrated mode.