how to fix “Connection timed out after 20 seconds of inactivity Error: Failed to retrieve directory listing”

this normally happens with filezilla. we had a post from 2010 about this here.

so this is an update, first check if you using the correct login info, then if still not working do:

1. Open Filezilla and open the settings (under the Edit menu)
2. Under “Connection” select “FTP”
3. The section at the top is called Transfer Mode. Within that, choose “Passive Mode”
4. Click OK. You should now be able to connect.