Hi geniusses, I am using ISA in integrated mode as caching server only behind a firewall. When I use WebProxy clients I have no problems reaching internal & external resources. When I enable Firewall clients, they have no problem to reach external adresses, but any address of the LAT isn't accessible. Can anyone give me some advice here please. Thanks in advance, Mikey Mike Fraeye____________________________________________________________ Microsoft Backoffice Support Center Siemens Business Services Guido Gezellestraat 121 B- 1654 Huizingen > * Gsm : +32(0)479 920 313 Fax : +32(0)2 536 34 58 > * E-mail : mike.fraeye@xxxxxx _________________________________________________________________________