This server is currently offline

If you're attempting to connect to a server and get the This server is currently offline error, it indicates that the upstream server is not currently listening for connections or it's rejecting them.

This error is caused when our edge nodes are unable to establish a connection with the upstream server, and it's usually caused by a misconfiguration on the customer's side, or just because the server is actually offline.

Why could this happen?

• The upstream server may be offline.
• The upstream server may be rejecting connections from our edge nodes caused by a firewall misconfiguration.
• The upstream server may be rejecting connections caused by an interfering plugin or forks, such as antibots.
• The upstream server may be misconfigured and not accepting proxy protocol headers.
• The backend hosts ip:port pairs may not be correctly configured in your Upstream settings.

How to fix it?

• Ensure that the upstream server is online and listening for connections.
• Ensure that the upstream server is not rejecting connections from our edge nodes, please refer to Upstream Protection for more information.
• Ensure that the upstream server is configured to accept proxy protocol headers, please refer to Proxy Protocol for more information.
• Ensure that the backend hosts ip:port pairs are correctly configured in your Upstream settings.