Solved

MAPI Referral Service enpoint RPC_S_SERVER_UNAVAILABLE error

Posted on 2014-09-20
3
2,407 Views
Last Modified: 2015-08-18
Trying to perform a cutover migration from Exchange 2003 to Exchange Online. Have run testconnectivity.microsoft.com many times, read through tons (more than a few times), gone through lots of troubleshooting but still ending with the same failure. Interestingly, Outlook 2007 does work using the RPC/HTTP configuration without issue. https://mail.exchsvr.com/rpc/rpcproxy.dll returns blank screen. Hoping that someone can provide some insight. Feeling like it is some small detail that is missing, but it has completely eluded me. Below is the latest result from testconnectivity:

 	Testing Outlook connectivity.
 	The Outlook connectivity test failed.
 	 	Additional Details

 	 	Test Steps
 	 	Testing RPC over HTTP connectivity to server mail.exchsvr.com
 	RPC over HTTP connectivity failed.
 	 	Additional Details

 	 	Test Steps
 	 	Attempting to resolve the host name mail.exchsvr.com in DNS.
 	The host name resolved successfully.
 	 	Additional Details

 	Testing TCP port 443 on host mail.exchsvr.com to ensure it's listening and open.
 	The port was opened successfully.
 	 	Additional Details

 	Testing the SSL certificate to make sure it's valid.
 	The certificate passed all validation requirements.
 	 	Additional Details

 	 	Test Steps

 	Checking the IIS configuration for client certificate authentication.
 	Client certificate authentication wasn't detected.
 	 	Additional Details

 	Testing HTTP Authentication Methods for URL https://mail.exchsvr.com/rpc/rpcproxy.dll?mail.exchsvr.local:6002.
 	The HTTP authentication methods are correct.
 	 	Additional Details

 	Attempting to ping RPC proxy mail.exchsvr.com.
 	RPC Proxy was pinged successfully.
 	 	Additional Details

 	Attempting to ping the MAPI Mail Store endpoint with identity: mail.exchsvr.local:6001.
 	The endpoint was pinged successfully.
 	 	Additional Details

 	Testing the MAPI Address Book endpoint on the Exchange server.
 	The address book endpoint was tested successfully.
 	 	Additional Details

 	 	Test Steps

 	Testing the MAPI Referral service on the Exchange Server.
 	An error occurred while the Referral service was being tested.
 	 	Additional Details

 	 	Test Steps
 	 	Attempting to ping the MAPI Referral Service endpoint with identity: mail.exchsvr.local:6002.
 	The attempt to ping the endpoint failed.
 	  Tell me more about this issue and how to resolve it

 	 	Additional Details
 	The RPC_S_SERVER_UNAVAILABLE error (0x6ba) was thrown by the RPC Runtime process. 
Elapsed Time: 1022 ms. 

Open in new window

Thanks for any assistance!
0
Comment
Question by:Markl0805
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 30

Accepted Solution

by:
Sudeep Sharma earned 500 total points
ID: 40336124
Hi  Markl0805,

In My opinion the reason is just above the error. Which is

=========================================================================
Test Steps
              Attempting to ping the MAPI Referral Service endpoint with identity: mail.exchsvr.local:6002.
       The attempt to ping the endpoint failed.
==========================================================================

Please make sure that ping is working.

Sudeep
0
 

Author Closing Comment

by:Markl0805
ID: 40354351
Hi Sudeep,
Thanks for the response. This is where the issue was. Resolving the problem with port 6002 was a whole other issue. 6001 and 6004 were responding properly and 6002 was open, but ping on 6002 was still not responding properly.

Sorry for the delayed response...got pulled in too many other directions at the same time while trying to resolve this issue.
0
 

Expert Comment

by:acdevadmin
ID: 40934766
How are you guys pinging ports??
0

Featured Post

Automating Your MSP Business

The road to profitability.
Delivering superior services is key to ensuring customer satisfaction and the consequent long-term relationships that enable MSPs to lock in predictable, recurring revenue. What's the best way to deliver superior service? One word: automation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

You need to know the location of the Office templates folder, so that when you create new templates, they are saved to that location, and thus are available for selection when creating new documents.  The steps to find the Templates folder path are …
Unified and professional email signatures help maintain a consistent company brand image to the outside world. This article shows how to create an email signature in Exchange Server 2010 using a transport rule and how to overcome native limitations …
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question