XP RAS issue VPN /firewall?

[D-man]

Hi, Folks, does anyone know why XP machines are not allowed to VPN into the
domain from a specific location? They work from People's homes, but fail when
they are at the offsite location? We are leaning towards a firewall issue.
The Vista machines work fine from that delinquent location. Problem is that
the folks need to be on XP for application reasons.


Thanks

 

[Guest]

Is port 443 blocked? Turn the useless Windows Firewall off for a start

Do you have terminal services & the required CAL's in place? Does the VPN
box allow that number of connections?

Are they members of the required groups like Remote Desktop..?

Do the XP machines get a certificate error like Vista machines do when an
untrusted certificate is installed?

Is the exteral IP correct?

Many questions unanswered