Vpn hell

Hi there,

I’ve been trying for weeks to establish a VPN connection and I keep getting the dreaded 800 error. I’m desperate; any help would be appreciated…

(1) I’m trying to establish an outgoing VPN connection from Computer A to Computer B
(2) A is running Windows XP
(3) B is running Windows 7
(4) A is overseas using an ISP in another country
(5) B has a static external ip address assigned by the ISP
(6) B has a static internal ip address in the LAN
(7) On B’s router I’ve opened TCP port 1723 and UDP port 500
(8) Both the above ports have been assigned to B by using its internal static ip address
(9) A can ping B with no lost packages
(10) On B I have set up the incoming ip (I think) correctly
(11) On A I have set up the outgoing connection with
Username: the username provided by B i.e. the Computer Name
Password: the password I set up on B
Hostname: the external ip address of B
(12) The router on A has the firewall disabled
(13) The router on B has the firewall enabled
(14) I have disabled the software firewalls and antivirus on both machines
(15) On my B I have "allowed callers to access my local area network"
(16) On B I have also selected "assign IP addresses automatically using DHCP" and have NOT selected "allow calling computer to specify its own address"
(17) On B’s router I have enabled UPnP

I’ve tried a million times but I keep getting the 800 error. The only things I can suggest are:

(a) In step (10) above I’m supposed to enter the name of the new User to set up. I have used the Computer Name of A. Is this right? Does it even make a difference? (see here: http://i661.photobucket.com/albums/u...atuX/VPN/3.jpg)
(b) There is some inconsistency in security used by XP vs. W7, e.g. W7 requires stronger security for incoming connections than the outgoing connection from A

Any ideas, as I’m running out of ideas?

Many thanks

Thanks for your prompt reply Fred.
Tried that and unfortunately no luck, I still get the 800 error.

(1) Could be anything to do with the new user name I use when I set up the incoming connection on machine B?

(2) Perhaps some of the other security settings on the XP machine A? e.g. encryption etc?

(3) Anything else?

Any help, really appreciated; I'm pulling my hair out here...

As an update I can now establish an incoming VPN connection from a machine on the same LAN as B (i.e. the VPN server).

However, the remote machine, A, still cannot connect to B, using identical settings. Again, to clarify, A can telnet to other machines' port 1723, but NOT to B.

Any ideas welcome...

No expert said:

(5) B has a static external ip address assigned by the ISP
(6) B has a static internal ip address in the LAN

(16) On B I have also selected "assign IP addresses automatically using DHCP" and have NOT selected "allow calling computer to specify its own address"[/SIZE][/FONT]

Not having so much knowledge on the subject, may i ask since B has specific internal IP why NOT "allow calling computer to specify its own address" ?

If it's a stupid question just ignore it.

hope u find the solution soon.

Thanks,

I actually tried it both with and without and made no difference....

This has now been resolved by disabling ZoneAlarm on the server which then however gave error 733.

This was then resolved by specifying a range of ip addresses for the client to connect to.

Thanks to everyone for their help.