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All Forums >> [Microsoft Exchange 2010] >> Mobility >> UAG - Outlook Anywhere - RPC_S_SERVER_UNAVAILABLE Page: [1]
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UAG - Outlook Anywhere - RPC_S_SERVER_UNAVAILABLE - 11.Oct.2012 10:31:35 AM   


Posts: 25
Joined: 26.Sep.2004
From: FL
Status: offline
I received no response from the TechNet forums unfortunately

I'm using Forefront UAG as a method to consolidate access to our internal network for outside users. UAG has published our CAS server's Outlook Anywhere (Exchange 2010). Our CAS is also the Hub and Mailbox role.


On the DMZ, I have the UAG server, and a TMG server

On the Internal, all resources exist including Exchange, RemoteApp, etc


Externally from Outlook 2010, when connecting with AutoDiscover,I am constantly prompted for my username & passwor

TestExchangeConnectivity.com throws this error with doing an RPC/HTTP test:

Attempting to ping RPC endpoint 6001 (Exchange Information Store) on server ExchangeServer.Contoso.local.
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

ll the previous testing steps passed, including RPC Pinging the UAG server:

Testing HTTP Authentication Methods for URL https://autodiscover.contoso.com/rpc/rpcproxy.dll?ExchangeServer.Contoso.local:6002.
The HTTP authentication methods are correct.

Additional Details
ExRCA found all expected authentication methods and no disallowed methods. Methods found: Negotiate, NTLM
Testing SSL mutual authentication with the RPC proxy server.
Mutual authentication was verified successfully.

Additional Details
Certificate common name autodiscover.contoso.com matches msstd:autodiscover.contoso.com.
Attempting to ping RPC proxy autodiscover.contoso.com.
RPC Proxy was pinged successfully.

Additional Details
Completed with HTTP status 200 - OK


From the Exchange Server I am able to telnet to the LocalHost port 6001. From UAG on the DMZ I cannot telnet to 6001 on the Exchange Server.

Post #: 1

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