DDNS not working after firmware update RT-AC86U

[legolas]

For some reason, I cannot get either firmware versions 386.1 nor 386.1_2 to work with my DDNS. Specifically, the DDNS Registration Result shows as Authentication Failed for the server, WWW.NO-IP.com. Thus, I have to use version 384.19 which still works for me. Please advise. Thank you.

 

[bbunge]

For some reason, I cannot get either firmware versions 386.1 nor 386.1_2 to work with my DDNS. Specifically, the DDNS Registration Result shows as Authentication Failed for the server, WWW.NO-IP.com. Thus, I have to use version 384.19 which still works for me. Please advise. Thank you.

Might be time to do a Hard Factory Reset ( https://www.asus.com/support/FAQ/1039074/ ) and manually configure. Please, do not use saved settings from a prior firmware version!
My DDNS and Lets Encrypt works well to freedns.afraid.org

 

[RMerlin]

For some reason, I cannot get either firmware versions 386.1 nor 386.1_2 to work with my DDNS. Specifically, the DDNS Registration Result shows as Authentication Failed for the server, WWW.NO-IP.com. Thus, I have to use version 384.19 which still works for me. Please advise. Thank you.

What does your system log shows?

 

[JohnD5000]

For some reason, I cannot get either firmware versions 386.1 nor 386.1_2 to work with my DDNS. Specifically, the DDNS Registration Result shows as Authentication Failed for the server, WWW.NO-IP.com. Thus, I have to use version 384.19 which still works for me. Please advise. Thank you.

Something similar was happening to me trying to connect to DNSOMATIC. Tried everything. Then, I changed my DNS-over-TLS Server List settings (on WAN/Internet Connection tab) from Cloudflare to Quad9 and it then worked fine.

 

[legolas]

What does your system log shows?

I PM'd you just now.

 

[legolas]

Something similar was happening to me trying to connect to DNSOMATIC. Tried everything. Then, I changed my DNS-over-TLS Server List settings (on WAN/Internet Connection tab) from Cloudflare to Quad9 and it then worked fine.

I don't see any option to change DNS-over-TLS Server List settings in WAN > Internet Connection. Which router are you using?

 

[JohnD5000]

I don't see any option to change DNS-over-TLS Server List settings in WAN > Internet Connection. Which router are you using?

You probably have DNS Privacy Protocol set to none. Anyhow, try changing your DNS servers to another provider and see if that matters.

 

[legolas]

What does your system log shows?

Feb 17 16:08:13 start_ddns: update WWW.NO-IP.COM default@no-ip.com, wan_unit 0
Feb 17 16:08:13 disk_monitor: be idle
Feb 17 16:08:13 custom_script: Running /jffs/scripts/service-event (args: restart nasapps)
Feb 17 16:08:13 inadyn[2851]: In-a-dyn version 2.8.1 -- Dynamic DNS update client.
Feb 17 16:08:13 inadyn[2851]: Update forced for alias XXXXXXX.ddns.net, new IP# XXX.XX.X.XXX
Feb 17 16:08:13 iTunes: daemon is stopped
Feb 17 16:08:13 FTP_Server: daemon is stopped
Feb 17 16:08:13 wsdd2[1754]: Terminated received.
Feb 17 16:08:14 inadyn[2851]: Fatal error in DDNS server response:
Feb 17 16:08:14 inadyn[2851]: [401 Unauthorized] badauth^M
Feb 17 16:08:14 inadyn[2851]: Error response from DDNS server, exiting!
Feb 17 16:08:14 inadyn[2851]: Error code 50: Authentication failure

 

[RMerlin]

Authentication failure is most likely what it says - an incorrect username or password.

Make sure your account hasn't expired. No-IP requires monthly re-activation.

 

[alan6854321]

I use No-IP and it works for me.

 

[JemTheWire]

As Eric says, check your login credentials. I use No-IP (paid for) and don't have an issue on my AX88U with Merlin v386.1.2

 

[legolas]

Authentication failure is most likely what it says - an incorrect username or password.

Make sure your account hasn't expired. No-IP requires monthly re-activation.

I checked all these things and everything is up to date and it still doesn’t work. It’s only working on 384.19 for me.

 

[legolas]

I got it to work now. I retyped in my login and password and now it's working fine. Thank you everyone.