I have just installed a 2800 router at a client who was running out of IP addresses. We used the router to segment the top and bottom floors of the building. The problem that I am seeing is that some clients will "loose" their ability to send traffic through the router. The only way that I can resolve the problem is to 1. ping the local gateway. 2. ping the ip of the "other" interface. 3. Ping the windows DNS server. 4 Ping an external address ie. www.google.com. Any ideas would be much appreciated .