FTP password issues


I have configured DDos on my domain.
After this facing a new issues like FTP connection. As every after 1-2 days when i connect through FTP its says invalid password.When i reset than i am able to connect through FTP.
Is it because of cloudflare ?

DDos Protection by Cloudflare

i am trying to connect through filezila
I Think this does not support third party tool due to cloudflare?


Moved to a new topic since not related.

You cannot proxy FTP through Cloudflare, it’s not supported. You are allowed only the list below:

As per the password I would most likely assume it’s an issue with your server, since Cloudflare won’t modify those things, especially since it’s not supported.