Knowledgebase: FTP
Firewall/Gateway Timeout Issues - Unable to access cPanel, FTP or webmail
Posted by - NA - on 2006-10-16 12:59:48 PM

Proxy and firewall solutions are very common in commercial and educational establishments and you should consult with the network administrator if you think this is the case. Some firewall configurations may prevent you from being able to upload to your site via FTP, access the cPanel control panel or access the webmail interface.

If you receive an error message such as:

Gateway Timeout
The following error occurred:
[code=GATEWAY_TIMEOUT] A gateway timeout occurred. The server is unreachable. Retry the request.

Then it is most likely a firewall system that is causing the problem.


The following is useful technical advice which may help if a firewall is causing the issue. You may want to pass the following information to your network administrator for them to change/modify the firewall configuration. You are reminded to check the computer/network usage policy at your employer/university as they may have restrictions on exactly what their systems can be used for.

To upload via FTP: You need to have TCP port 21 outbound enabled at a minimum. Ideal the firewall should allow the server to open a connection to the client on TCP port 20 (inbound) - if this is not possible, please check your FTP client to see if it supports "Passive Mode" and try enabling/disabling that.

To access the Control panel (cPanel): You need to have TCP port 2082 outbound enabled at a minimum. Other port numbers used by the control panel is 2083 (which is Encrypted Cpanel), 2095 (Webmail) and 2096 (Encrypted Webmail). Resellers also need access to port 2086 and/or 2087 (Encrypted WHM).

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