Fix MRS Proxy Endpoint Not Found in Exchange Hybrid Configuration Wizard
Question details
Enable MRS Proxy so the Exchange Hybrid Configuration Wizard can find the endpoint during a hybrid deployment.
- Product
- Microsoft Exchange Hybrid Configuration Wizard
- Device & OS
- not provided
- Scenario
- An administrator is configuring a hybrid environment for on-premises Exchange and Exchange Online.
- Observed behavior
- The Hybrid Configuration Wizard reports that the MRS Proxy endpoint was not found because MRS Proxy is disabled.
Open the Exchange Management Shell on the on-premises Exchange server with an account permitted to manage Exchange virtual directories. Identify the EWS virtual directory used for the hybrid deployment.
Enable MRS Proxy on the Exchange EWS Virtual Directory
Use this solution when MRS Proxy is disabled on the EWS virtual directory used for the hybrid deployment.
In the Exchange Management Shell, run `Get-WebServicesVirtualDirectory | Format-Table -Auto Identity,MRSProxyEnabled` and find the relevant EWS virtual directory. Check whether its MRSProxyEnabled value is False.
Run `Set-WebServicesVirtualDirectory -Identity "<Server>\EWS (Default Web Site)" -MRSProxyEnabled $true`. Replace `<Server>\EWS (Default Web Site)` with the exact Identity shown for the relevant virtual directory.
Run `Get-WebServicesVirtualDirectory | Format-Table -Auto Identity,MRSProxyEnabled` again and verify that MRSProxyEnabled is True for the virtual directory you changed.
Open the Hybrid Configuration Wizard and retry the hybrid configuration.
Document Your Exchange Hybrid Setup with WPS Office
WPS Office is a free, lightweight Office alternative with a familiar interface and Microsoft Office format compatibility, making it easy to migrate documents and track your hybrid deployment. It does not configure or repair Exchange MRS Proxy.
Frequently Asked Questions
How do I check whether MRS Proxy is enabled?
In the on-premises Exchange Management Shell, run `Get-WebServicesVirtualDirectory | Format-Table -Auto Identity,MRSProxyEnabled`. Look for the relevant EWS virtual directory and check its MRSProxyEnabled value.
Which identity should I use when enabling MRS Proxy?
Use the exact Identity returned by Get-WebServicesVirtualDirectory for the EWS virtual directory used by your hybrid deployment. Enter it in the `-Identity` parameter of Set-WebServicesVirtualDirectory.
What should I do after enabling MRS Proxy?
Run `Get-WebServicesVirtualDirectory | Format-Table -Auto Identity,MRSProxyEnabled` again to confirm the value is True, then rerun the Hybrid Configuration Wizard.
What if the wizard still cannot find the endpoint?
Check that MRS Proxy is enabled on the EWS virtual directory used by the hybrid deployment and that the endpoint is reachable from outside the on-premises environment.
