This DisplayString counts cases where this gateway initiated an IKE negotiation and got no response at all from the peer, per 'IKE no response from peer (initiator errors).' This is functionally a dead-peer indicator distinct from an active rejection, so a rising count typically means a remote gateway is offline, unreachable, or blocked by a firewall rather than actively refusing the connection. Consistently hitting this counter for one specific branch office's tunnel while others negotiate fine points to that one site's link or gateway being down.