ERR_CONNECTION_REFUSED

In short: The target computer actively refused the connection.

In more detail: Usually no service is running on the target port.

In Depth

Possible causes

• Server or service not started.
• Wrong port.
• Firewall blocks (firewall).

Solutions

1. Start the service and check the port.
2. Test reachability with ping and telnet/nc (ping).
3. Adjust firewall rules.

See also: Firewall, Port, Ping