RT-AC88U NTP sync issue

[Astomono]

Hi, I'm having trouble with NTP syncing on my router causing DNS-TLS to not work unless restaring ntpd. I'm running Diversion, Skynet, ntpMerlin, scMerlin and Disk check script.

Upon rebooting the router i look at the log created by Disc check and it states: NTP timeout (100s) reached, date is router default.

I've tried reading the forums and added service restart_ntpd to init-start and executing via chmod 755 /jffs/scripts/init-start. (New to this stuff)

I've had a look at cat /etc/resolv.conf and it comes up with my ISP's DNS even though i have DNS-TLS setup in the WAN section so i'm sorta wondering what i'm doing wrong.

 

[L&LD]

Try setting the WAN DNS options to not automatic and use 1.1.1.1 and 1.0.0.1 instead. Reboot the router. Is it fixed?

If not, do you have the Wan: Use local caching DNS server as system resolver (default: No) set to No?

Do you have DNSFilter set to On and Router for global?

 

[Astomono]

I've changed the WAN DNS to 1.1.1.1 and 1.0.0.1, rebooted and am now 10 mins in since the reboot. NTP still hasnt set as my queries are not encrypted (looked via tcpdump).
Use local caching DNS server as system resolver is on default (No).
DNSFilter was set to On an Router for global yes.

In AMTM:
! Module diversion.mod download failed
! using fallback server diversion.ch
! Module diversion.mod download failed
! Module entware.mod download failed

and NTP timeout (100s) reached, date is router default
Sat May 5 06:07:08

 

[dave14305]

Similar problem reported here: Troubleshooting ntp on boot

 

[Astomono]

Similar problem reported here: Troubleshooting ntp on boot

Saw this post yesterday and have made the following changes:

SSH into Router:
nano /jffs/scripts/init-start

#!/bin/sh
service restart_ntpd

chmod 755 /jffs/scripts/init-start

Still having the same issue unless i've done something incorrectly

 

[dave14305]

I would put something in wan-event to ensure the WAN is available before restarting ntp.

#!/bin/sh

if [ "$2" = "connected" && "$(nvram get ntp_ready)" != "1" ]; then
  nslookup $(nvram get ntp_server0) | logger -t "ntp-check"
  nslookup $(nvram get ntp_server1) | logger -t "ntp-check"
  service restart_ntpd
fi

Edit: added nslookup of NTP servers to syslog

 

[Astomono]

I would put something in wan-event to ensure the WAN is available before restarting ntp.

#!/bin/sh

if [ "$2" = "connected" && "$(nvram get ntp_ready)" != "1" ]; then
  service restart_ntpd
fi

Thanks! That seems to have fixed it

Should i still keep
service restart_ntpd in init-start too?

 

[dave14305]

Thanks! That seems to have fixed it

Should i still keep
service restart_ntpd in init-start too?

I don’t think it’s needed there since it won’t do any good if the WAN is not yet ready.

 

[Jack Yaz]

I would put something in wan-event to ensure the WAN is available before restarting ntp.

#!/bin/sh

if [ "$2" = "connected" && "$(nvram get ntp_ready)" != "1" ]; then
  service restart_ntpd
fi

I'll swap to this but not planning any reboots at the moment (wife won't be happy )

 

[dave14305]

It really shouldn’t be necessary at all, because it should refresh when wan comes up.
https://github.com/RMerl/asuswrt-merlin.ng/commit/a6d339a6e25be8d9fbd891eebd09ee9ad4de7779

 

[Astomono]

Not to be cheeky but how would i go about removing/disabling the chmod 755 /jffs/scripts/init-start script i had created?

 

[Jack Yaz]

Not to be cheeky but how would i go about removing/disabling the chmod 755 /jffs/scripts/init-start script i had created?

rm /jffs/scripts/init-start

will delete the file

 

[dave14305]

I added a DNS check to my script snippet above.

Not to be cheeky but how would i go about removing/disabling the chmod 755 /jffs/scripts/init-start script i had created?

rm /jffs/scripts/init-start

 

[Jack Yaz]

It really shouldn’t be necessary at all, because it should refresh when wan comes up.
https://github.com/RMerl/asuswrt-merlin.ng/commit/a6d339a6e25be8d9fbd891eebd09ee9ad4de7779

Hm perhaps it's not working. It may be worth noting I don't have the "server" option enabled since i use entware's ntpd, but that won't load until NTP has been synced by the firmware

 

[Astomono]

Thanks to all, for the help