58. Proprietary modes for wireless networking
Many wireless product vendors include support for various
proprietary wireless modes which offer considerably increased bandwidth and
speed under certain conditions. Generally these devices (such as the 'super G'
products offered by many manufacturers, which support up to 108Mbps bandwidth)
require all wireless clients to support the same mode. Since these higher-speed
modes are not generally enable by default, it's a good idea to check your
existing wireless equipment to see if there is some way to squeeze more speed
out of it.
because the box advertises a certain maximum speed does not mean that your
wireless router and network cards are actually reaching that speed currently.
59. Closer is better for wireless
simple tip, but one that can make a world of difference to wireless performance
in your home, especially if you are using the older 802.11b standard, where data
transfer is slow to begin with. The stronger the wireless signal, the faster and
more reliable the data transfer will be. While 802.11b and g devices are
supposed to work effectively up to 300 feet from a wireless access point, the
range of individual products varies widely, and obstructions and atmospheric
conditions also affect this number. Most common obstructions (such as typical
wooden flooring in a house) provide less of an obstacle to a wireless signal
than an increase in distance does, so plan your wireless placement
60. Enhance your Internet connection
have a broadband connection, either DSL or cable, chances are there's a few
things you could do to optimize its speed. Windows XP uses a variety of registry
settings to control how fast data is passed to and from network interfaces, so
tweaking these settings to more accurately reflect the capabilities of your
connection is a good idea. As there are a number of rather esoteric locations in
the registry that need to be changed in order to tweak your connection's speed,
refer instead to the selection of registry files here to automatically set the correct
values for your system.
61. Increase DNS cache size
written above, Windows XP uses a DNS cache to store recently visited Internet
addresses. This cache is referred to before a request is sent out over the
Internet when the user requests a web page address. If the IP address
corresponding to the web address is in the cache, that address gets used, saving
time. If it is not, your computer needs to find out the correct IP address by
asking a DNS server over the Internet.
kept in the cache for a finite amount of time and are constantly bumped to make
room for more recent addresses. By increasing the size of the DNS cache, you can
increase the speed of your web browsing, especially if you regularly check the
same web pages.
increase the size of the DNS cache, open REGEDIT and navigate to;
Create the following DWORD values:
CacheHashTableBucketSize = 1
CacheHashTableSize = 180
MaxCacheEntryTtlLimit = ff00
MaxSOACacheEntryTtlLimit = 12d