Tftp wont work

TFTP will not work on newly installed freepbx 2.11 system please help

What version of FreePBX and how did you install? What testing have you done? Exactly what is not working?

It’s freepbx and it was installed by rentpbx but the tftp server was installed by
incredible pbx and it will not let me get files from the server but the port is opened on the firewall
Also when I do a port scan it shows it’s closed