Hi all, This problem happens every couple of weeks or so. We have 26 branch offices that connect back to head office via the ISA server (firewall/router) to a Cisco VPN router. All branches IE is configured to use the ISA for proxy. Occassionally the branches complain they cannot get access to the Internet...restarting the ISA server solves this. There is no issue at Head Office since we are on the same subnet as the ISA. What could be causing the issue?