Hi I have error event id 14120 sources: Microsoft web proxy: Isa server service cannot create a packet filter (public ip address) this event occur when there is a conflict between the local address table LAT configuration and the windows 2000 routing table, check the routing table and the LAT to find the source of conflict In the TechNet I found this event solution as the following: Resolution Although you can ignore this event, you can also resolve this behavior. To do so, on the DNS server that is being used for internal name resolution, create a host record (A record) for the fully qualified domain name that is used by internal users and that resolves to the internal IP address or the IP address of the Web server on which the Web site is hosted I checked the LAT in isa and I didn?t found any thing strange the range of ip addresses are only the internal ip address, I checked the routing table and I found the public ip address that is mentioned in the event as destination network with 127.0.0.1 as gateway There is no conflict between the LAT and routing table I checked DNS to see if the A record is there for the web server domain, no problem I found it Could you please help, to know from where is the problem? hanan