Forcing NTP to update?

[jpoulos]

I am using NTP on my AS5200 and 3640's, but it isn't synching. Is there a way to force it to synch? Some of my routers are synching and some aren't. I have my routers set up w. the NTP server x.x.x.x pointing back to the main NTP server router. Do I need anything else?

Jpoulos

CCNP

[james.feger]

You may need to set the system time on the router manually then apply NTP. NTP does not sync up properly if it is off by more than a certain amount of time. I do not remember the exact limit, but I know its more than 5 minutes. Also, have you checked that the NTP server has a route back to your router that is not syncing, and vice-versa?

[mmikhail]

Try debug ntp packet and see what's going on!