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+1  Q: 

MSDTC attempts to enlist client machine in a distributed transaction

Hi there

We're seeing the following intermittent warning logged by MSDTC:

A caller has attempted to propagate a transaction to a remote system, but MSDTC network DTC access is currently disabled on machine 'X'. Please review the MS DTC configuration settings.

However, MSDTC is disabled on machine X by design - it's a client machine, and has no business being enlisted in the transaction!

  • Several windows service endpoints hosting WCF services over TCP
  • Single SQL Server 2005 instance beneath
  • Linq to Sql
  • Remote client receives event callbacks over WCF/TCP

The issue is tricky to reproduce - usually following restart of services. We suspect a callback to the client machine is occurring within the context of a transaction.

Just wondering if anyone has seen similar issues??

Ken

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