Windows event ID 4965 - IPsec received a packet from a remote computer with an incorrect Security Parameter Index (SPI). This is usually caused by malfunctioning hardware that is corrupting packets. If these errors persist, verify that the packets sent fr

Event ID: 

4965

Category: 

System

Subcategory: 

IPsec Driver

Supported on: 

Windows Vista, Windows Server 2008

IPsec received a packet from a remote computer with an incorrect Security Parameter Index (SPI). This is usually caused by malfunctioning hardware that is corrupting packets. If these errors persist, verify that the packets sent from the remote computer are the same as those received by this computer. This error may also indicate interoperability problems with other IPsec implementations. In that case, if connectivity is not impeded, then these events can be ignored.

Remote Network Address: %1
Inbound SA SPI: %2

Related content