Routers Error Codes

A PPP/PPPoE session negotiation failed and the link control protocol was terminated.

The remote server rejected the requested network address during connection setup.

The remote server did not assign an IP address during the connection process.

An L2TP/IPsec VPN connection could not be established due to negotiation or authentication failure.

The connection could not be made because the modem or network device was not found or not ready.

A VPN connection could not be established, often due to blocked ports or protocol restrictions.

The VPN or remote connection was interrupted before it could complete.

A VPN tunnel could not be established, commonly due to blocked ports or NAT/firewall configuration.

A VPN/remote connection was blocked because the access policy did not allow the requested connection parameters.

A broadband connection attempt was blocked because a connection is already established or configured as always-on.

A connection attempt ended because the port was disconnected or the session was terminated.

The remote endpoint closed the connection during session establishment.

A PPP connection attempt failed and the session could not be established.

The remote endpoint did not respond during a connection attempt.

Authentication failed for a PPP connection, often due to credentials or permission.

A PPP control protocol could not be negotiated during connection setup.

The specified destination was not reachable during a connection attempt.

A connection attempt could not complete due to a device or link failure.