FileZilla fails to retrive directory listing

I keep getting this error in FileZilla.

I am using the same config parameters as instructed in milestone tasks. I have seen similar issues on forum, but none of the answers work for me. I ensured that my server is running, all config parameters are same, and even tried this solution
https://my.wirenine.com/knowledgebase/140/How-to-fix-failed-to-retrieve-directory-listing-error-in-FileZilla-FTP.html.

Nothing seems to work. Please help me, I’ve been stuck here for almost a week.

I did some changes and now I get this

directory listing will be enable by making some changes in .conf file so once study about directory listing on google and you will get it @Mujtaba

Hey @Mujtaba this happens in many cases kindly refer to these links you will able to find out

https://www.ucodice.com/blog/ftp-500-illegal-port-command/

https://forum.filezilla-project.org/viewtopic.php?t=32349

also checkout this and make sure you have not defined some unnecessary parameters under or left parameters under vsftpd.conf.

https://forum.filezilla-project.org/viewtopic.php?t=15188

I added pasv_promiscous=YES as it was suggested in one of the links you provided. But still the error persists. Is there a possibility that my college LAN is blocking the ftp connection ? But in that case I should not even be getting “Connection estabilished”.

yeah most of the times this happens try to do it with your mobile hotspot and check if this works?