Asus RT-AC68U - USB HDD connected on USB are not accesible on ftp via wan

[mariusrtr]

I have an Asus RT-AC68U and everything was fine until a few months ago. At some point at the end of 2020 the router had some strange behaviour because it was ok 2 or 3 days and after that my wireless networks were unavailable until I have restarted the router.
Now things seems ok with the last beta firmware that Asus released. But now I am not able to acces my ftp from asuscomm.com from anywhere else outside of my network. I have enabled WAN on USB apps, I have tried any kind of solutions but nothing seems to work. I even rolled back to a older firmware. I also used Merlin firmware for this router but I am not able to make it work outside my lan. In my network I am able to see my USB HDD attached to this router, I am even able to connect to it like a ftp, but when I try to acces the ftp from another place I am not able to do it.
I can not explain what happened exactly because I have used another Asus routers untill this one and I did not had any kind of a similar problem.

I would appreciate any kind of help.

Thank you!

 

[ColinTaylor]

Perhaps your ISP changed your IP address to CGNAT. Check that the WAN IP address shown on the router's Network Map page matches that shown by https://canyouseeme.org/. Also check that your asuscomm.com address resolves to the same address.

 

[mariusrtr]

Hi Colin

Thank you!

This is my IP shown on CanYouSeeMe:

ANd this is my IP shown on Asus

It seems that they do not match.

What should I do?

 

[ColinTaylor]

100.78.x.y is a CGNAT address assigned by your ISP. You will not be able to reach your router's VPN server from the internet because of this. You need your router to have a public IP address, which is presumably what it had last year.

There are two things you can try.

1) Contact your ISP and ask them to give you a public IP address instead of a CGNAT address.

2) On the router's WAN setup page use the MAC Clone button (and apply the change). Then power cycle both your modem and router. You should be assigned a new WAN IP address. If you're lucky it might be a public one.

 

[mariusrtr]

Thank you Colin!

I have tryed the second solution...but the IP is still with 100 in the begining.
I will try the first one.

Thank you very much for your support!

 

[Jeffrey Young]

As Colin suggested, call your ISP and see if they will assign you a public IP.

If your ISP can not give you a public IP, see if they are willing to set up a port forward for you. I am behind a CGNAT as well. My ISP was very accommodating. They set up a static IP within the CGNAT and forward 5 ports of my choice (I just gave them a range in the 51000s) to me from their public side IP.

Works fantastic.

 

[mariusrtr]

As Colin suggested, call your ISP and see if they will assign you a public IP.

If your ISP can not give you a public IP, see if they are willing to set up a port forward for you. I am behind a CGNAT as well. My ISP was very accommodating. They set up a static IP within the CGNAT and forward 5 ports of my choice (I just gave them a range in the 51000s) to me from their public side IP.

Works fantastic.

Thank you Jeffrey!

Meanwhile I have solved this with my ISP, because they offer a free DDNS service. This way I was able to create my own DDNS and it works great!

 

[Jeffrey Young]

Thank you Jeffrey!

Meanwhile I have solved this with my ISP, because they offer a free DDNS service. This way I was able to create my own DDNS and it works great!

Even better!