Constant DDNS refreshes

RocketJSquirrel

Senior Member
This is new. Suddenly, my AC68U running 386.5_2 is logging constant DDNS refreshes. Like every 30 seconds. Ideas?
Jun 14 18:09:03 watchdog: start ddns.
Jun 14 18:09:03 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:09:03 start_ddns: IP address, server and hostname have not changed since the last update.
Jun 14 18:09:33 watchdog: start ddns.
Jun 14 18:09:33 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:09:33 start_ddns: IP address, server and hostname have not changed since the last update.
Jun 14 18:10:03 watchdog: start ddns.
Jun 14 18:10:03 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:10:03 start_ddns: IP address, server and hostname have not changed since the last update.
Jun 14 18:10:33 watchdog: DDNS Recover Time reached, recover DDNS Retry.
Jun 14 18:10:33 watchdog: start ddns.
Jun 14 18:10:33 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:10:33 start_ddns: IP address, server and hostname have not changed since the last update.
Jun 14 18:11:03 watchdog: start ddns.
Jun 14 18:11:03 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:11:03 start_ddns: IP address, server and hostname have not changed since the last update.
Jun 14 18:11:33 watchdog: start ddns.
Jun 14 18:11:33 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:11:33 start_ddns: IP address, server and hostname have not changed since the last update.
Jun 14 18:12:03 watchdog: start ddns.
Jun 14 18:12:03 rc_service: watchdog 231:notify_rc start_ddns watchdog
Jun 14 18:12:03 start_ddns: IP address, server and hostname have not changed since the last update.
 

dosborne

Very Senior Member
Have you tried a reboot? Sometimes the simplest answer just works :)
 

RocketJSquirrel

Senior Member
Reboot fixed it. Duh. No dual WAN. Sorry for the waste of forum bandwidth.
 

jfree23

Occasional Visitor
Reboot fixed it. Duh. No dual WAN. Sorry for the waste of forum bandwidth.
I occasionally get constant DDNS refreshes also, same log entries as OP, AX86U on 386.7.2 and also on previous revs. I do use Let's Encrypt. Not sure what starts it; by the time I look the log is filled with them, 30 sec apart.

FYI, I was able to stop them by just going to the GUI WAN DDNS tab, changing nothing, click Apply. This appears to force a DDNS update, clears the DDNS cache, starts Inadyn. After doing this, the constant DDNS refreshes are gone. Did NOT have to reboot.
 
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RocketJSquirrel

Senior Member
FYI, I was able to stop them by just going to the GUI WAN DDNS tab, changing nothing, click Apply. This appears to force a DDNS update, clears the DDNS cache, starts Inadyn. After doing this, the constant DDNS refreshes are gone. Did NOT have to reboot.
Thanks for the reply. I continue to see these from time to time also. Good to have a better solution than rebooting.
 

small_law

Occasional Visitor
So I'm here in October 2022 because I started seeing this error and and started searching the forms for it. Mine was caused by an internet outage. Once the modem regained a WAN connection, the error started. Kind of makes sense.

Hitting apply on the DDNS page worked as detailed above. Thank you for the solution.
 

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