VPN Connection in Build 5600

[Josh Ross]

I cannot get a VPN connection to an ISA VPN server to connect. Has anyone
else?

-Josh

 

[Guest]

I ran into the same problems with RC2 (5744). I already updated our ISA
Server to version 2006 and try some settings, but it still doesn't work. We
use PPTP. I will try to analyse the logs on vista, but they are quite
confusing.

Peer

 

[Guest]

Some updates:

I tried out different authentication protocols (MS-CHAP v1/v2, CHAP) both on
the server side as well as on the client but it still doesn't work. If I
monitor the traffic on the isa server I can see the initiation of the pptp
connection and exactly 30 seconds later the connection will be disconnected.
There seems to be no authentication yet cause we use RADIUS and no RADIUS
packets can be seen on the firewall.

With Windows XP clients everything works fine with exact the same VPN
settings on this ISA server.

Also very important: With the same Vista machine I can connect to a Draytek
VPN-router over PPTP without problems.

Therefore there must be a problem between the PPTP-implementation of Vista
and the ISA server.

I tried to have a look on the client logs, but I cannot find this function
any longer?! The diagnostic only tells me that no problem can be detected.
What a stupid answer if the same system tells me that the vpn connection
could not be established. Yesterday at home (with WLAN instead of Ethernet) I
saw a diagnostic report function and it told me something like error 807.
Perhaps I am only too stupid to find that report again ...

Peer

 

[Guest]

I am suprised that noone else seems to have simular problems. Perhaps it is a
settings problem but i tried out a lot and everything works fine with
different PPTP-servers than ISA. I suppose it is a implementation problem
with the Vista "PPTP-stack".

 

[Guest]

I too cannot connect to a PPTP VPN server (MS Server 2003). I could with RC1
but not RC2. It will authenticate and then just disconnect me after about
30-60 seconds. I receive an IP address but cannot do anything on the network.