I am setting up a closed network for router logging testing purposes and need all devices to have synchronized time via NTP. I configured an XP box as the authoritative time server with Windows Time Agent and then configured the 2600 routers to point to that IP as the NTP server source. I let it sit for 24 hours and no synchronization occured. I read that if the time difference is greater than 4000 seconds (and in this case it was due to the default time a router resets to on reboot) then reset the router clock to a time closer to the NTP server and the sync should occur. I did that and 24 hours later still no synchronization. I get the feeling that it has something to do with the fact that my XP box does not connect to an internet stratum 1 or 2 server for it's update that is causing the problem. Unfortunately, for testing reasons, I can not connect this to any other networks. Any ideas on how to correct this?