After applying several updates last night and rebooting we no longer can connect to one of our servers. I can ping the gateway and other machines on the LAN from the server but I can't ping the server from any of the other machines. When I attempted to open the firewall program I got the message "Windows Firewall cannot run because another program or service is running that might use network translation componet (ipnat.sys)". The machine is a Compaq/HP Proliant ML530 with only one NIC enabled. What is going on!