Troubleshooting ntp on boot

[Jack Yaz]

For some reason, ntp will not reliably sync for me on reboot for me.

I can see the below process running:

/usr/sbin/ntp -t -S /sbin/ntpd_synced -p pool.ntp.org -p time.nist.gov

but time never syncs. If I manually re-run the command, time is set immediately. Is there any way to get logging out of ntp so I can check why it is not syncing?

RT-AC86U 384.17

 

[dave14305]

I’d focus on the DNS situation during boot. Busybox NTP allows a verbose level, but if it runs successfully after-the-fact it’s not much use. Maybe put the command in wan-start/wan-event to test nslookup of the NTP servers and ntp with -d.

 

[Jack Yaz]

I’d focus on the DNS situation during boot. Busybox NTP allows a verbose level, but if it runs successfully after-the-fact it’s not much use. Maybe put the command in wan-start/wan-event to test nslookup of the NTP servers and ntp with -d.

dns resolution seems fine, i can nslookup from the router itself and they resolve. router is set to not use dnsmasq so everything goes upstream to cloudflare

 

[dave14305]

dns resolution seems fine, i can nslookup from the router itself and they resolve. router is set to not use dnsmasq so everything goes upstream to cloudflare

But during boot, there could be a timing / sequencing issue with WAN coming up. Maybe?

 

[Jack Yaz]

DNS all seems fine...puzzling!

 

[Jack Yaz]

Going to try this suggestion from @skeal https://www.snbforums.com/threads/384-16_alpha-builds-testing-all-variants.61952/#post-553788

Out of interest, @skeal do you still use the init-start call to restart ntpd?

 

[Jack Yaz]

Well, adding service restart_ntpd to init-start works...stumped as to why it's needed though!

 

[Jack Yaz]

Hm, I wonder if this is related? Do others have this file?

admin@RT-AC86U:/tmp/home/root# cat /jffs/cfg.json 
{"ntp_server0":"","action_script":"restart_time;restart_leds;restart_usb_idle;restart_firewall;restart_bhblock;"}

 

[maghuro]

Hm, I wonder if this is related? Do others have this file?

admin@RT-AC86U:/tmp/home/root# cat /jffs/cfg.json
{"ntp_server0":"","action_script":"restart_time;restart_leds;restart_usb_idle;restart_firewall;restart_bhblock;"}

Yes, but mine is different

admin@RT-AC86U:/tmp/home/root# cat /jffs/cfg.json
{"wl0_maclist_x":"","action_script":"restart_wireless"}

I don't know its purpose

 

[Dabombber]

It's amas sync junk, part of cfg_server. It might be needed and/or generated by the webUI.

 

[Jack Yaz]

It's amas sync junk, part of cfg_server. It might be needed and/or generated by the webUI.

Yeah I was going to say looks like the last thing I edited in the webui

 

[JaimeZX]

Jack I've had the same issue intermittently for the last few weeks on the 3200. NTP doesn't sync and I wind up rebooting again. At least with your thread I have a command to try in SSH.