OS & Networking
Posted By Irfad

Workaround for TCP/IP Security Limitation in Windows XP

One of my clients running their internal Mail Server in Windows XP SP2. And some times an event is logged as “TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts” and the Event ID: 4226. For security (malware infections) reason since Windows XP SP2 release it limits 10 concurrent connections per second. This will prevent having more than 10 concurrent connections in such P2P applications. I’d probably migrate this Email Server to Linux based server in future. But for the time being I found a patch to increase the limit which you can download from the following link.


Run the file and select “Y” when prompted to apply the patch.

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