Binding to the forest root failed.

For the few MSMQ or NetMsmqBinding WCF users I’ve encountered, here is an error you may encounter in a highly secured environment.

0xC00E008F Binding to the forest root failed. This error usually indicates a problem in the DNS configuration. MQ_ERROR_DS_BIND_ROOT_FOREST

This is most likely another firewall problem. If port 3268 is not open, MSMQ cannot register or authenticate with the user’s certificate in AD. Here is the port description:

3268/TCP,UDP msft-gc, Microsoft Global Catalog (LDAP service which contains data from Active Directory forests)

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