Win10 FTP doesnt't work properly

Hello
Uncheck option: For SSL user Prot P instead of Prot C

Hello.

I've already tried this but with no success I'm afraid. When unchecked I get a 521 error after the MLSD command...

250 OK. Current directory is /
TYPE A
200 TYPE is now ASCII
PASV
227 Entering Passive Mode (185,20,50,28,240,225)
MLSD
521 Data connection cannot be opened with this PROT setting.