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The Bleeding Edge - DSL/ADSL

broadcast towerThe 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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