05-02-2009 10:25 PM
After upgrading to Cisco AnyConnect v2.3.0254 Outlook on the clients will not connect to the Exchange like before.
I can RDP and Ping det exchange server, but Outlook won't connect. Even more strange is that after 10-30 min's of "waiting" Outlook suddenly connects and everything works perfect for the rest of the VPN session.
I have noticed that pinging the exchange server right away after VPN connects don't get any replay, while pinging the VPN router itself does. If I wait for about 30 seconds and ping the exchange server again it replays. It might get sense for some of you...?
05-07-2009 06:39 AM
are they vista clients?
05-07-2009 11:53 PM
Yes, Vista 64-bit
05-08-2009 12:21 AM
I have seen this before with checkpoint secure remote but it may work for you also as its more of an issue with rpc and vpn clients.
I implemented method 2 and it resolved the issue
http://support.microsoft.com/kb/899148
let me know how it goes
05-13-2009 10:47 PM
The following registry key was not there, but I created it (along with the string Server2003NegotiateDisable), however no better result.
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Rpc
After that I did allow all traffic for a short period through the firewall with no better result.
I have run "outlook /rpcdiag" and see that no rpc prossess connects. So the problem is around rpc.
I'm getting short of idéas here...
Also I still can't understand why pinging the server wan't respond before 30-60 sec of waiting after VPN connection is established (while pinging all other servers on the same net responds on first attempt).
05-14-2009 12:47 AM
suggest running tcpudmp or wireshark on client machine to see whats happening to the traffic.
http://stuffmate.com/download/tcpdump_for_windows/
post the output here if you want me to review
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