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How to fix Vista's network bottlenecks

Time: 00:06 EST/05:06 GMT | News Source: APC Mag | Posted By: Kenneth van Surksum

As much as I enjoy using Vista, I�ve definitely noticed that in some networking activities, it definitely seems to struggle. Particularly compared with Windows XP.

For the most part it�s not a problem � I just assumed that Vista�s beefy network stack was responsible, and made a mental note to fix it at some point. And then forgot.

But recently I encountered a really frustrating problem. Using Remote Desktop Protocol (RDP) to connect from a Vista Enterprise machine to a Windows 2003 server, the performance was so woeful that I was starting to worry whether there was a problem with the server.

All this automatic tuning of the Vista network stack sounds great in theory, but the problem is that some clients don�t support TCP window scaling, or do but don�t have it enabled. Additionally, some firewall products also don�t support it. In either scenario, the result is dropped packets which affects network performance horrendously -- your traffic is literally dropping into a black hole, never to be seen again.

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