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We have a simple Exchange 2007 setup with Mailbox, Hub Transport, CAS and Edge Transfer. The Edge Transport server is located outside AD in a DMZ.

My problem starts 24 hours after successfully configuring the edge-subscription as per Microsoft's guidelines on technet... I get InvalidCredentials and the synchronization fails.

It looks to me like renewal of the bootstrap-synchronization account fails.

How can this happen? Why does it happen? I can't find anything wrong with the setup or the subscription. It works excellent for 24 hours, but fails. When I renew, it works for 24 hours again.

Mostly Windows Server 2008 x64, some Windows Server 2008 R2 x64 in the setup.

Could use some input on this error. Anyone experienced this before?

1 Answers1

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It turns out that the service "Microsoft Edge Credential Service" on the Edge-Transfer server had stopped, and this caused the "InvalidCredentials" to pop up in the eventlog on the Hub Transport server. Therefore I'll just keep monitoring this service for a few weeks, and hope it doesn't stop again.

I fixed this by starting the aforementioned service, and made sure it was still active today. I guess this problem would have gone away after a reboot, like so many other issues :-P