ERR_CONNECTION_REFUSED – Connection was refused

The target server or a filter rejects the connection.

Do not factory-reset a router speculatively or indiscriminately disable Wi-Fi security or a firewall. Get permission before changing someone else’s network.

Check address and test other websites.
If only this page is affected, try again later or contact the operator.
Check privately used VPN/proxy settings. Do not deactivate your firewall or virus protection across the board.

Test after each step and stop when the issue is solved. Checkmarks are not permanently saved.