I enabled FTP file sharing on my android phone using ES file explorer.
Now in windows explorer, I can access the phone files on 1st attempt; but after that whenever I'm trying I'm getting "550 Failed to change directory." error. But if I restart FTP on my phone, then again it starts to work for only 1st attempt.

This is not happening if I try to access by Total Commander on my windows. TC is not showing any error if I open TC after few hours of starting FTP on phone.

I'm using Windows 8.1 update 1 on my laptop.

Any fix?