TS3: lost file transfer connection | Linux Ubuntu 20.02 Dedicated

Hello,

I have a TS3 Server, however ANY file attempts return in an Transfer “ACTION” reports: (lost file transfer connection). Both in-house (in my lan) and on our remote-dedicated we have all required ports open, including the firewall “windows” and UFW. This is becoming frustrating. 2 installs both on a strict-dedicated linux and one in pterodactyl return no luck.

root@esrp:~# netstat -tulpn | grep 9987
udp        0      0 0.0.0.0:9987            0.0.0.0:*                           639/./ts3server     
udp6       0      0 :::9987                 :::*                                639/./ts3server     
root@esrp:~# netstat -tulpn | grep 30033
tcp        0      0 0.0.0.0:30033           0.0.0.0:*               LISTEN      639/./ts3server     
tcp6       0      0 :::30033                :::*                    LISTEN      639/./ts3server     
 root@esrp:~# netstat -tulpn | grep 10011
tcp        0      0 0.0.0.0:10011           0.0.0.0:*               LISTEN      639/./ts3server     
tcp6       0      0 :::10011                :::*                    LISTEN      639/./ts3server     
root@esrp:~# netstat -tulpn | grep 10022
tcp        0      0 0.0.0.0:10022           0.0.0.0:*               LISTEN      639/./ts3server     
tcp6       0      0 :::10022   
root@esrp:~# netstat -tulpn | grep 10080
tcp        0      0 0.0.0.0:10080           0.0.0.0:*               LISTEN      639/./ts3server     
tcp6       0      0 :::10080                :::*                    LISTEN      639/./ts3server     

Closed. Moved Providers, issue resolved.