# Troubleshooting
Unable to connect to FTP
If you are unable to connect to FTP, please;
- If you have a firewall (local or external), allow the FTP passive port range inbound, 30000:31000.
php websites cannot connect to the outside internet
If php websites cannot connect to the outside internet , please;
- Check you have not disabled the "ufw" firewall. This is required as it manages the outbound NAT which PHP containers use to connect to the internet. Run:
sudo ufw enable