Archer A7 FTP

[SpecialQ]

I'm having an issue connecting to the shared drive connected on my TP Link Archer A7 Firmware Build 20190517 rel.65170 (5553) using FreeFileSync ver.10.13 via FTP.

I'm able to connect to using FileZilla and Chrome browser, but when I try using FFS it gives me this error:

Cannot read directory "ftp://76.168.164.147".

CURLE_FTP_COULDNT_RETR_FILE: RETR response: 550
550 Unable to handle command [curl_easy_perform]

I've connected to this drive before on an Archer C7.

Any thoughts or suggestions?

[Zenju]

Maybe some firewall is blocking FreeFileSync FTP?

[SpecialQ]

There is SPI Firewall but turning that off didn't change anything.