Hi all, This is a query to the network guru's out there to see if they can help/explain a scenario to me. (I know I have done CCNA but it was a while ago and it is not helping).. I have recently come into an environment which I believe has the following setup: DC's --> 2 x 6509 Load Balancing --> ISA Firewall --> Internet The problem I was having was that the PDC had errors stating it could not sync to time.windows.com. Now all the DC's have their default gateway set to the IP of the 6509 setup. When I mentioned this to someone in passing they suggested I created a persistent route to the ISA firewall for the IP address of time.windows.com (Thus bypassing the 6509's). The moment I did this and hit resync the DC picked up the correct time and since then has had no problems... Unfortunately the person I spoke to has disappeared! I have absolutely no idea why this works and why it did not work previously... can anyone shed any light on this?