OK, hang in there with me for this one......
- Internal network of servers and hosts, all addressed in the 10.1.20.x block on a mask of 255.255.0.0.
- One server is a Microsoft ISA 2004 server, SP1, with two NIC's - one internal, one external to DSL modem
- Clients are all student laptops running XP Pro, SP2 with the Microsoft VPN client configured via CMAK utility
- All client laptops are identical (imaged via Ghost, SID has been changed)
- All laptops work fine wirelessly on campus
- All laptops are joined to the domain (Active Directory)
- Group Policy forces all students to use ISA as the proxy server for content filtering/logging
- Some (not all) of the clients can not connect the VPN client when they go home, can not connect at all
- Some (again, not all) of the students can connect the VPN client, but can not access any internal servers (thus browsers can not connect with the web proxy engine)
- Some work just fine
I have looked at this for 3 weeks, and can see no rhyme nor reason why some work, and some can't. I have created a "public" wireless router internal here for testing (connected to a seperate internet circuit), and they all work fine from the test network.
I think I have it narrowed down to a DNS issue, but can't seem to pinpoint the
So, the million point question is thus: What could possibly be missing here?
Thank you in advance for your help!
Guerin Catholic High School