What to do if Installing Updates from Microsoft Affects Thin Client Performance

May 2007

Q)I’ve installed an update from Microsoft that has impacted Acucorp’s Thin Client performance: What can I do?

A) It is possible that the patch you installed changed the TCP/IP settings. You can use software such as Dr.TCP or TCPOptimizer to tune your TCP/IP settings.

Setting the TCPReceiveWindow to 1500 on WinXP SP2 and Win2000 SP4 has proven to improve Thin Client speed when working with a Aix 5.2 5L PowerV host, along with other Unix boxes.

This setting is not intended to be the “definitive”, but just a start from where to begin tuning TCP (and Thin Client) performance. After any change a reboot is needed in order to see the effects.

Using these settings can also solve other performance issues after installing SP2 on WinXP.

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