Windows Update KB893066 (4/12/05)
 

Windows Update KB893066 (4/12/05) breaks the old SP2 TCP Slowdown Fix, if you had the old one installed or recently installed KB893066, you will need to download a new one and repatch.

This patch allows 50 concurrent TCP connect attempts instead of the usual 10 allowed by Windows XP SP2.

News source: ieXbeta
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