Archer C7 v1 latest firmware FTP Problem (3.15.3 Build 150511 Rel.55816n)

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Archer C7 v1 latest firmware FTP Problem (3.15.3 Build 150511 Rel.55816n)

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer C7 v1 latest firmware FTP Problem (3.15.3 Build 150511 Rel.55816n)
Archer C7 v1 latest firmware FTP Problem (3.15.3 Build 150511 Rel.55816n)
2017-03-12 03:17:06
Model :

Hardware Version :

Firmware Version :

ISP :

Hello, my router model TP-Link Archer C7 v1 has made me very mad in the last few weeks.
I have tried all known tutorials, faq's from tp-link site and other sources but nothing helped.

The problem is the following:

I set up my ftp server according to the tutorial : http://www.tp-link.com/us/faq-341.html, the interface is a little bit different for the V1 but in essence the same.
I use a 32gb Sandisk USB flash drive.

Shared what needed to be shared, created users, started the FTP Server, unchanged Port (21).

The problem is that i can acces the ftp on the local ip adress the routers local ip 192.168.0.1, but i can't on the wan ip

I also use a ddns host configured in the router from no-ip. I use the same ddns address to access the routers configuration page from my phone when i am not home, so i know that the ddns works.

The ftp server works with my wan or ddns host only if i put the routers ip in DMZ, if not it doesn't allow anything to connect to the FTP server even if a change the port, i also used other ports but none worked.
So my question is what can i do other than to leave my router in DMZ forever. Also port forwarding any ip i set in the ftp configuration gives a conflict error. If i leave the router in DMZ ON i can access the FTP even if internet access is turned off in ftp settings, so that is kind off not an option for me :))

Thank you for taking a few minutes to read my problem. Also i searched the forum for my specific problem with C7 router and the search form said that there is nothing about it. So if there is and i didn't find it, i am sorry.
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Re:Archer C7 v1 latest firmware FTP Problem (3.15.3 Build 150511 Rel.55816n)
2017-03-31 01:45:04
Funny I have exact same problem only that my Archer C7 is V2. However WAN FTP work fine before I reset to factory settings. Now I can't get it to work. LAN FTP is fine. I'm thinking of reflashing the firmware again. I also notice your post is MARCH 11 and no one has answered your issue. I hope admin will see this and fix yours and my issue.
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Re:Archer C7 v1 latest firmware FTP Problem (3.15.3 Build 150511 Rel.55816n)
2017-04-05 01:12:54
If you try it on regular port, from your LAN, it doesn't work.
To test it, I added a random port (2221 or whatever) forwarded to the router IP. This way, it's working with ddns as well. (with :2221 appended)
From outside your LAN though, that random port doesn't work, you can access it on 21, or without specifying a port, or on the normal port the FTP server is set to (havent tested)
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