Outlook 2003 VPN SBS 2K Exchange Unavailable

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From: Mick Hardy (mick_hardy_at_austarnet.com.au)
Date: 02/17/05 

Date: 16 Feb 2005 17:07:52 -0800

We have three networks on different subnets, all configured with SBS
2000, two NICs and a single static IP. I use VPN connections between
the various Networks and RD pretty regularly. I used to use Outlook
through VPN to access my e-mail but I've recently upgraded one machine
to Office Pro 2003 and Outlook 2003 will not connect on that machine
to a remote Exchange server.

I've been battling this on and off for quite a number of weeks and
need some help. I would like to get Outlook 2003 working rather than
having to use OWA.

I know the number of posts and solutions on topic is huge but I'm
pretty sure I've tried many of them, including hosts/lmhosts, Format
C: and reinstall entire client machine, new profiles, different users,
adding EnablePMTUDiscovery & EnablePMTUBHDetect parameters, changing
the MTU on the client using DrTCP, checked the ClientProtocols
registry key. All servers and clients are fully patched.

No traffic goes through the VPN connection (sent or received) when
Outlook 2003 is attempting to connect or a profile is being created.
I think this is the key.

Pinging the FQDN (or server name) works fine as does browsing the
remote Network, although this has always been a little slower than I
would expect.

Outlook 2000 works fine from a different machine on the same Network
with the same user.

I have complete control over anything across the three Networks from
this machine but Outlook 2003 can't find Exchange. Any help or
troubleshooting would be greatly appreciated.

Relevant Pages

  • Re: Outlook 2003 VPN SBS 2K Exchange Unavailable
    ... VPN client from Kerberos/NTLM to NTLM? ... > We have three networks on different subnets, ... I used to use Outlook ...
    (microsoft.public.windows.server.sbs)
  • Re: just simple facts
    ... if u dont have client.. ... ISP would recommend to hide their problem of authentication so u dont have ... I want to know what enabling 'Client for Microsoft Networks' ... DUN will then redial ...
    (microsoft.public.win2000.security)
  • Re: 802.1X Setup using Server 03 and Aironet 1200 Series WAP help
    ... Office/Home Office or Small Organization Networks" ... communication between the wireless client and IAS just was not ... most of the 170 pg Microsoft pdf located at the link below. ... Windows" documentation http://technet.microsoft.com/en-us/library/bb457068.aspx ...
    (microsoft.public.internet.radius)
  • Re: MS Client Binding on External NIC
    ... Looks like unchecking Client for MS Networks on the external NIC doesn't buy ... a whole lot of additional security with SBS 2003 Standard. ... Merv Porter [SBS MVP] ...
    (microsoft.public.windows.server.sbs)
  • Re: just simple facts
    ... I do use Client to browse local network but not on my dialup adapter. ... I want to know what enabling 'Client for Microsoft Networks' ... >> Why would an ISP 'recommend' it be installed for Internet access? ...
    (microsoft.public.win2000.security)