In my office we have just upgraded to a SBS 2008 server, on a few laptops that have Zonealarm Security Suite 9.1.507.000 accessing an internal website is horrifically slow, as soon as I turned off ZA it runs perfect.

I have listed in Firewall Zones as a host/Site the name and IP of the actual site, have the entire domain range as a network and the DHCP Server all as Trusted. Ping time is 1ms for the server is 1ms.

Can anyone help with some suggestions as to why the speed is so slow as I dont like having users having to disable their ZA and how to fix this issue? Thanks