Vista added support for IPv6,
improved network protocols for faster detection and
transfer. In theory these nice features should take your
Internet connection to the next level! Just like before,
Vista slows down everything with lots of extra overheads. In
this article, I will show you how to speed up your
connection by turning off those features.
Step #1 - Turn Off Unneeded Network Protocol.
Try to turn off unneeded protocol such as IPv6, Qos Packet
Scheduler, File and Printer Sharing, Link-Layer Topology.
Step #2 - Use Static IP.
Try to use static IP, assign an IP to your computer, don't
rely on DHCP server to assign IP for you.
Step #3 - Use OpenDNS.
Replace your ISP DNS server with OpenDNS, or any faster DNS
server (You need to try them before you know).
Go to Control Panel -> Network or Internet -> Network and
Sharing Center -> Manage Network Connections, select and
highlight the connection, then right click and select
properties.
Uncheck any unwanted protocol. Highlight IPv4 and select
properties, set the IP address and DNS server accordingly.
Use 208.67.220.220, 208.67.222.222 for OpenDNS server.
Step #4 - Increases local DNS cache.
Vista will capture every DNS records you access, by
increasing the cache size will minimize the needs to query.
Go to registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\ Dnscache\Parameters, create or change the value
below, all in hexadecimal:
CacheHashTableBucketSize = 1
CacheHashTableSize = 180
MaxCacheEntryTtlLimit = ff00
MaxSOACacheEntryTtlLimit = 12d
Step #5 - Turn off TCP Auto Tuning.
This might be the major reason, try to disable it or other
settings. You need to manually configure TCP settings if you
disable this function.
Use this command "netsh interface set global autotuning=disable"
to turn off auto tuning, "netsh interface set global
autotuning=normal" to turn on auto tuning. All command must
run as Administrator.
(C) Copyright 2008 Kok Choon
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