New Router, broadband and unable to ftp

[yourkeylady]

My dearest brother changed switched our nice fast old router with a new one, and now ftp doesn't function, and the web is extremely slow.

I've turned the firewalls off to test ftp and it will connect to the site, but not allow any data to be recieved.

Sometimes it says connection was closed, and other times it says it was a successful transfer, but no file was recieved.

Help Please !! I don't know how to fix this one.