HCW has completed, but was not able to perform the OAuth error when running Hybrid Configuration
Original KB number: 3089172
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.
An issue occurred that prevented OAuth authentication from being configured. The issue could be a transient or permanent exception.
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.