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ISA 2004 Closes HTTP Traffic - 27.Nov.2007 5:22:30 AM

monkeymagic79

Posts: 1
Joined: 27.Nov.2007
Status: offline

Can anyone help please I am a bit of a newbie to ISA 2004 SP1. I will try and explain the current setup and the issues best I can.

We currently look after an SBS 2003 server with ISA 2004 installed on it connected directly to the internet via its external LAN. The clients use SecureNat not proxy and have no firewall client installed on them.

Due to bandwidth requirements we had installed a second ADSL line and modem. We removed the first from the ISA and put in place a dual WAN router with load balance, NAT, Firewall etc.
We then changed the external card IP to that of the Dual Wan router LAN and updated any rules on ISA that defined that gateway.

I can VPN into the server fine, but the clients on the internal network get really intermittent Internet connections. So I looked at logging http traffic upon doing this I see that the ISA Server is closing the connections. I see a connection established and then it is straight away closed again and so on.

Any ideas would be greatly appreciated and if you need anymore information just ask.

Thanks