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The
Bleeding Edge - DSL/ADSL |
 The
Internet connection method DSL and its sibling ADSL are
excellent ways to get lots of bandwidth for a relatively
low price, particularly if you're a business user. DSL
runs over existing telephone wires, and costs way less
than T1/T3 (though it costs more than cable, currently
averaging about $60 a month with a $300 setup fee).
Until recently, the problem was availability: the Baby
Bells were stonewalling and refusing to spend the bucks
to install digital subscriber lines, and as a result,
most of us couldn't get ADSL access for a long while.
That's rapidly changing, at least for urbanites. If you
live in a rural area, ADSL access may be a long way off
for you; if you live in or near a big city, check to see
if you have it. A new version of ADSL called ADSL Lite
or Universal ADSL, or a newer version called G.Lite, may
be a lot closer to your phone jacks. "Asymmetrical
digital subscriber line" technology works better than
its parent, DSL, because of its ability to function over
longer distances. AOL, Mindspring, Compaq, Microsoft,
and several regional Bells have tentatively decided to
support G. Lite. We're talking 25 to 35 times faster
access here, folks. For those privileged few of you with
access to DSL/ADSL now, check a few things: how fast is
it really (i.e. upload as well as download speeds),
hidden costs (additional access fees, installation
costs, cancellation penalties), how convoluted the
installation is, and can you keep your present ISP? For
more info, surf over to www.adsl.com/, www.dsl.com/,
and www.dslreports.com/. The more computer-savvy
among us can install a G.Lite system themselves. Update:
a Web site called 2Wire at www.2wire.com/links/areacode/
lets you find out if DSL access exists in your area by
simply taking your area code and comparing it to a
database of existing DSL carriers. Note: "free" DSL
offers are popping up, most of which are not free (at
the least, they are requiring you to buy an expensive
DSL modem). Worse, "free DSL" tends to run at the slower
ADSL speeds. Check it out before you sign up. A good
rule of thumb is that the closer you are physically to
your DSL provider, the faster the connection. Any
farther than a couple of miles and you won't get the
fastest connection times. However, one, Winfire (www.winfire.com/join/default.asp),
comes recommended by my pal Vince at
5 Star Support, so you might do well to give it a
look.
Here are some tweaks for faster DSL performance:
- Make sure you use the cables supplied by the
vendor. Just because they look like the same cables
you used for your analog modem doesn't mean they are
the same.
- Remember, DSL works over regular telephone
lines. If the phones are down, chances are your
Internet service is down, too.
- Check the network card. If you're having a lot
of connection problems or system errors, your
network card may be causing a conflict.
- Your DSL modem may come with a default password.
You need to change it immediately.
- Use the little plastic cubes that wrap around
the modem cable. They are ferrite chokes that block
interference from radios, cell phones, and other
outside electronic scuzz.
- If you lose all Internet access, try rebooting
the modem. Unplug the power cord, wait 30 seconds,
and power it up again. If that doesn't help, check
the Sync or Link lights. Blinking indicates line
problems. Make sure your cabling is attached firmly.
- Get a microfilter. You may notice static or
humming on your phone line after installing a DSL
connection. If you're using a line splitter, call
the DSL provider and ask if they can install
microfilters on the voice devices sharing the line.
Also, keep the modem away from halogen lamps and AM
radios.
- If you're experiencing sluggish downloads, you
may need to "de-tweak" your dial-up settings. Many
people tweak their Windows DUN connections for
better performance with analog modems; these tweaks
may actually slow down your DSL connection. Go to
navasgrp.home.att.net/ or www.dslreports.com/
to check your settings.
- Don't let the phone company blame you off the
bat. Make sure they check their own equipment first.
Oftentimes water damage to the cabling causes
corrosion, which causes abrupt drops in performance.
- Win XP users, ignore the advice to disable the
QoS (Quality of Service) networking component. The
story is that the QoS setting steals bandwidth; it
ain't true. Also resist the advice to adjust the TTL
(Time To Live) setting, which affects only the
behavior of irretrievably misdirected data packets.
- Just so you know, a lot -- I mean a lot
-- of DSL subscribers are complaining bitterly about
subpar service and installation, even from bigname
ISPs such as Earthlink and Verizon. If this is your
story, it ain't just you, Buckwheat.
- Keep your eyes open for fiber-optic data
transmission for Internet connections, coming soon
to a PC near you.
- Sony is exploring the use of always-on DSL and
cable connections for resource sharing, similar to
the method SETI and Google use voluntarily and Juno,
among others, foist on the unwary. Sony hopes this
will radically augment its online gaming capability.
Find out more by reading up on "Grid Computing" at
www-1.ibm.com/services/insights/etr_grid.html.
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