NTP works on the 870 series. I do not know about the 850 series.

I have it working on an 877 (Advanced IP Services IOS 12.4(15)T8).

To the original poster, try entering the commands as:

conf t

ntp server 0.de.pool.ntp.org

exit

It may not synchronise immediately, but you can check the status with the 'sh ntp status' command, e.g.:

Cisco-877#sh ntp st

Clock is synchronized, stratum 3, reference is 213.249.66.35

nominal freq is 250.0000 Hz, actual freq is 250.0693 Hz, precision is 2**16

reference time is CD96900A.FBEFC403 (07:09:14.984 BST Mon Apr 20 2009)

clock offset is 1.5630 msec, root delay is 66.79 msec

root dispersion is 30.56 msec, peer dispersion is 1.95 msec

Sorry, but my router doesn't sync the time.

Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version 12.4(24)T, REL

EASE SOFTWARE (fc1)

The config is:

scheduler max-task-time 5000

sntp server 192.53.103.108

sntp server 192.53.103.104

sntp server 192.53.103.103

sntp source-interface Dialer0

I need it because I use

time-range internet-allg

periodic daily 16:00 to 20:00

periodic Saturday 20:00 to 22:00

periodic Friday 20:00 to 22:00

and every time I reboot the router the date is set to Feb 2002 and the time is I think 2 a clock.

any ideas ?

Here's what I use:

A list of the Simple Network Time Protocol (SNTP) time servers that are available on the Internet

http://support.microsoft.com/kb/262680

NOTE: Although the link contains SNTP sources, I have used the same information for NTP successfully.

Hope this helps.

Thanks for the information, but it's the same issue. When I reboot the router the year is 2002 and no time-sync will come up.

please help