Windows event ID 4961 - IPsec dropped an inbound packet that failed a replay check. If this problem persists, it could indicate a replay attack against this computer

Event ID: 

4961

Category: 

System

Subcategory: 

IPsec Driver

Supported on: 

Windows Vista, Windows Server 2008

IPsec dropped an inbound packet that failed a replay check. If this problem persists, it could indicate a replay attack against this computer.

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

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