Why does v3006.102.4 firmware not list the ASUS DDNS server?

[alpha.tsv]

I upgrade my ASUS RT-AX86U Pro to v3006.102.4 Merlin firmware.
My RT-AX86U Pro is the China version.
I can't find the ASUS ddns server from the DDNS setting (as the image below).
What happened for my router?

 

[bennor]

My RT-AX86U Pro is the China version.

That is most likely the reason, China.

The Asus DDNS is the first one listed on my RT-AX86U Pro.
PS: So many have issues with Asus's DDNS its probably best to use something else anyway. Some of us have good luck with the free noip.com even though one has to renew every 30 days to keep the free DDNS name.

 

[RMerlin]

They used to have a China-specific server (WWW.ASUS.CN). It was discontinued at the end of 2024.