"HCW has completed, but was not able to perform the OAuth" error when running Hybrid Configuration

• Applies to:

  Exchange Online, Exchange Server 2013 Standard Edition, Exchange Server 2013 Enterprise

Original KB number:   3089172

Symptoms

When you run the Hybrid Configuration wizard, you receive the following warning message:

The HCW has completed, but was not able to perform the OAuth portion of your Hybrid configuration. If you need features that rely on OAuth https://technet.microsoft.com/library/dn497703(v=exchg.150).aspx, you can try running the HCW again or manually configure OAuth using these manual steps https://technet.microsoft.com/library/dn594521(v=exchg.150).aspx.

Cause

An issue occurred that prevented OAuth authentication from being configured. The issue could be a transient or permanent exception.

Resolution

Do one of the following, if you have to have the features that OAuth provides:

• Rerun the Hybrid Configuration wizard to see whether OAuth authentication configuration is completed successfully.
• Manually configure OAuth authentication. For more information about how to do this, see Configure OAuth authentication between Exchange and Exchange Online organizations.

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