PPTP vpn appears firewalled?!

Tech-Archive recommends: Fix windows errors by optimizing your registry

i've installed windows 2003 sp1 on sbs 2003, and from that point on, the PPTP
VPN seems 'firewalled'. that is, i can connect to the VPN from wherever, but
i cannot ping, or access remote desktop from the client computer. however,
which the VPN is established, i CAN ping from the server to the client.

i've also installed SPS 2003 SP1, and all the other updates, so i woudl
expect it tp work. it's the premium version, so ISA server is installed.

nothing else has changed other than installing the service packs in the
order specified but microsoft.

there is no obvious way to check this firewall scenario, i cnanot access the
windows firewall from security center as it says ipnat.sys is in use or
something.

can anyone perhaps point me in the right direction?

thanks
Rich
.

Relevant Pages

  • Cannot Add client computer to domain
    ... I have the server og a client computer connected to a switch. ... I can ping the servername and get replies from 192.168.10.10 ... The DHCP-server works and gives my client computer an IP-adress. ...
    (microsoft.public.windows.server.sbs)
  • Internal interface in RRAS non-operational
    ... My internal interface for RRAS on my windows 2000 server is non-operational. ... DNS works because I can try to ping microsoft.com from ... a client computer and the server gives an IP but I get timed out errors. ...
    (microsoft.public.win2000.ras_routing)
  • RE: LDAP Test error unable to authenticate user
    ... Yes, you are right, some 3rd-party software or virus on the client computer ... may try to access the server in the background. ... click to check the "Hide All Microsoft Services" ... This newsgroup only focuses on SBS technical issues. ...
    (microsoft.public.windows.server.sbs)
  • Re: RDP can not logon error
    ... Tracert & Ping to dc on the same subnet as the server that is having trouble. ... No network provider accepted the given network path.. ... Starting test: CrossRefValidation ...
    (microsoft.public.windows.server.general)
  • Re: Cannot connect to Server
    ... Test 1 - the clients can ping one anotehr ... gpupdate/force - reboot both client and server - ping to server from client ... Suggestion 2 - ping to server works when running safe mode with networking ...
    (microsoft.public.windows.server.sbs)