Have a look at Q163576. We have run into similar problems with Outlook not responding although all network connectivity is present. As you said, we could ping the Exchange server, establish network connectivity to other servers, but could not get into Outlook. Many times reloading the TCP/IP protocol fixes the problem but since this is VPN, reloading will not help anything. When I ran into this issue with a VPN connection, I wound up changing the RPC binding order in the registry per the Q article and ensuring the rpcrt4.dll was registered correctly under the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ClientProtocols. We also noticed that the rpcrt4.dll had become corrupt so after replacing this .dll with a good copy, we were able to access Outlook.
This took a lot of trial and error to get the exact steps, but it was a relief when it fixed the problem. Amy -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 13, 2002 2:50 PM To: Exchange Discussions Subject: RE: Exchange and PPTP + VPN See if he can telnet to 135 by both FQDN and ip address. Also, once Outlook hangs run a netstat on both the client and server to see if there are any active sessions between the two. -----Original Message----- From: Chris Scharff [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 13, 2002 4:12 PM To: Exchange Discussions Subject: RE: Exchange and PPTP + VPN So he can't ping by name then? Sounds like a netbios name resolution. I'm guessing he can resolve the server name if uses the IP address or the FQDN? If so, this would support that assumption. You could then verify this by adding an entry to his hosts file.. which would resolve but not fix the underlying name resolution issue. > -----Original Message----- > From: David Lloyd [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, August 13, 2002 2:31 AM > To: Exchange Discussions > Subject: RE: Exchange and PPTP + VPN > > Ok everyone, > Thanks for your help with this and i spent loads of time on the phone > yesterday trying all your advice out. The state of play is still the > same, but this is what he can do: > > He can dial the VPN server over the xDSL link, establish the > connection. He can browse "My Network Places" and Navigate to the > servers shares and access them all. He can telnet into the Exchange > server on Port 25, and send mail by hand. He can browse the Internet > without any problems. > > It gotta be Outlook surely?? With Outlook i did the following: Ran > Scanpst against his OST file. Turned off Offline access, to rule out > Syncronisation. Deleted his OST file and had it recreate it later of > an analogue line. Recreated his profile. However, i can not resolve > the server name in the profile box. > In other words he can do everything but open Outlook. > > So it leaves RPC config and maybe the ports that Outlook uses are > being blocked?? > > Thanks again for all your help. > > David > > ---------- > > From: Baker, Jennifer[SMTP:[EMAIL PROTECTED]] > > Reply To: Exchange Discussions > > Sent: 12 August 2002 18:41 > > To: Exchange Discussions > > Subject: RE: Exchange and PPTP + VPN > > > > Recreate his mail profile. > > > > -----Original Message----- > > From: David Lloyd [mailto:[EMAIL PROTECTED]] > > Sent: Monday, August 12, 2002 2:04 AM > > To: Exchange Discussions > > Subject: Exchange and PPTP + VPN > > > > > > Hi everyone, > > I've been having this problem for some time and was wondering if > > anyone could help me with it. I have this NT4 server with PPTP > > installed plus some VPN connections. The staff can now dial > into > > their local ISP and can open Outlook client > > and get their mail. They can also browse the shares, fine so far. > > However, recently the director went to NY and is sharing > > someones office over there which has DSL in place. He uses this link to > > make > > the VPN connection, which works no problem, > > until he tries to open Outlook, which freezes everytime! He can dial > in > > to > > the server using a normal phone line which works > > fine. I guess its a routing problem, i have disabled the setting on > > his VPN connection "use default gateway" but this makes > > no difference. > > He is using Windows ME on a laptop. I myself have ADSL installed at home > > and > > it works for me no problem. The network he > > is connected/using seems a simple setup, just a hub that he plugs into > > and > > i guess a NAT box that gives him an ip address. > > > > Any thoughts guys? > > > > > > Thanks > > > > David > > > > > > CONFIDENTIAL NOTICE > > This communication contains information which is confidential and > > may > also > > be privileged. It is for the exclusive use of the intended > > recipient(s). If you are not the intended recipient please note that > > any distribution, copying or use of this communication or the > > information in it is > strictly > > prohibited. 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