Unable to join to TMG EMS Array with error: 0xC0040431

Introduction Consider a scenario where TMG Admin reinstalled TMG Enterprise Edition after a hardware failure and decided to rejoin the array member to the EMS. However, when TMG Admin tried to rejoin it the following error occurred: Troubleshooting The first basic step in this type of scenario is to review the event view, since it…


TMG Quick Tip: Unable to Join a TMG to an Existing Array

On this TMG quick tip the troubleshooting scenario is very straight forward, consider the following: TMG administrator is trying to create a TMG 2010 Standalone Array in Workgroup (or Domain) and he gets the error below while trying to join Server to an array:   After reviewing the TMG log file “ISA_JoinArray” log in %temp%…