@Sinyas 

Good Day，

For your case, could you please check the following information:

1. If the DDNS is not working, how about using the WAN IP address directly showing under the status page?
2. When you try to ping the DDNS name, did it return with the same WAN IP address?
3. And what kind of DDNS did you use?

Thank you~

@Sunshine 

Thank you for your time to reply sir

Im using noip services

When I log into my account on noip I find updated ip address same as my router which means ddns is working and communicates with the router prerfectly and if I try to use ddns address on the same computer linked to the router it opens normal no problem however on a different network it wont.

I dont know what ports are normally opened on the router by default so I can try to use if it works

Example :

Example.ddns.net:xxxx

I tried 80, 8080, 443 but nothing happens

P.S: plz note that on the same computer wired to the router it works without specifying any port just putting example.ddns.net in the browser it opens the config page of the router.

Thank you so much and have a good day

@Sinyas 

Good day.

In this way, Did you try to use the WAN IP address to access the router from a different network as well?

And can I have a picture of your ACL setting for remote management?

May I know your current firmware about the TD-W8961N?

And how long have you had the router and is this the first time that you had this problem?

Thank you~