We have an SBS 2003 server using 2 NIC cards. One is configured to external with the IP address, SM and gateway given to us by ISP. The DNS is left blank on this NIC. The internal NIC is set to 10.0.1.1 SM 255.255.255.0 Gateway is blank and DNS is 10.0.1.1. I have also checked the binding order and the internal NIC card is first. We are using ISA 2004 standard.
I recently updated the drivers on the NICs and we have been having issues since. clients on the network cannot access emails or get to the internet. From the server I can ping a client IP, and a DNS address. I am also able to get to the internet on the server.
Can some one tell me what I need to check in ISA to get this working? Thanks