sntp problem - I don't get the time.....

RouterOS General
1

Hello
for some reason I don’t get the time after I config the clock+sntp
what did I forgot to do??

 /system ntp client print 
        enabled: yes
           mode: unicast
    primary-ntp: 192.43.244.18
  secondary-ntp: 0.0.0.0
  poll-interval: 16s
  active-server: 192.43.244.18

** I’m connected to the internet and in another router with the same config I can see the time

2

Are there perhaps any firewalls in the way?

3

no.
It’s stop working - and now I don’t get even ping to that address
how can it be?
ntp server stop working?

4

Have you tried a different NTP server? It’s generally a good idea to set up a secondary as well.

http://pool.ntp.org has plenty of candidates you can try :slight_smile:

Failing that, and assuming you have internet connectivity from that router, I can only suggest power-cycling the unit in question.

5

thanks ,
I will enter one of them as secondary
but its bizarre that my primary stop working…

6

time.nist.gov is used by far too many people* -it’s possible it fell over under load. If you specifically want a NIST server, try one of the others at http://tf.nist.gov/tf-cgi/servers.cgi but pool.ntp.org is an extremely good idea.

Also, you can try the more fully featured NTP Client/Server RouterOS package rather than SNTP.

*actually, time.nist.gov load balances across many NIST servers. For some reason, 192.43.244.18 isn’t listed on that site, and it’s reverse DNS seems to be time.nist.gov. I can’t traceroute to that specific address from here either - and if your other router synced a while ago, it may not yet be saying it has trouble.

And it seems to have been dead for a while: http://www.pool.ntp.org/scores/192.43.244.18
Incidentally, http://support.ntp.org/bin/view/Servers/TimeNistGov says that it only allows 20 queries per hour from each IP - if you have a lot of hosts behind NAT this will build up fast.

7

Thanks for the explain !