Sunday , December 15 2019

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 Office Server and Services MVP , Publisher of Azure365pro.com. Specialized in Office365 / Microsoft Exchange / Virtualization , Sathesh is an Messaging Expert supporting/Designing/Deploying many medium size businesses to large enterprises when it comes to Corporate messaging and Virtualization Infrastructure

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