Thursday , April 19 2018

The HTTP request was forbidden with client authentication scheme ‎’Negotiate‎’

Exchange Server 2016 Hybrid Server , Hybrid remote move Migration Error.

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Error: MigrationTransientException: The call to ?’https://mail.careexchange.in/EWS/mrsproxy.svc?’ failed. Error details: The HTTP request was forbidden with client authentication scheme ?’Negotiate?’. –> The remote server returned an error: ?(403)? Forbidden.. –> The call to ?’https://mail.careexchange.in/EWS/mrsproxy.svc?’ failed. Error details: The HTTP request was forbidden with client authentication scheme ?’Negotiate?’. –> The remote server returned an error: ?(403)? Forbidden.. –> The HTTP request was forbidden with client authentication scheme ?’Negotiate?’. –> The remote server returned an error: ?(403)? Forbidden.
Report: anon@careexchange.in

Make sure MRS Proxy is Enabled.

Get-WebServicesVirtualDirectory –identity SERVERNAME\EWS (Default Web Site) | FL MrsProxy*

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To Enable

Set-WebServicesVirtualDirectory –identity SERVERNAME\EWS (Default Web Site)  -MRSProxyEnabled $true

To Disable

Set-WebServicesVirtualDirectory –identity SERVERNAME\EWS (Default Web Site)  -MRSProxyEnabled $false

In my case MRS Proxy is already Enabled. Enabling Basic Authentication on Web Services Virtual Directory resolved the issue.

Set-WebServicesVirtualDirectory –identity SERVERNAME\EWS (Default Web Site) -BasicAuthentication $TRUE

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About Satheshwaran Manoharan

Satheshwaran Manoharan is an Microsoft Exchange Server MVP , Publisher of CareExchange.in
Supporting/Deploying/Designing Microsoft Exchange for some years.
Extensive experience on Microsoft Technologies.

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