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slow, erratic DSL, normal when phone is in use

Discussion in 'Networking' started by GameFreak24, Apr 16, 2006.

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  1. GameFreak24

    GameFreak24 Thread Starter

    Jul 11, 2004
    I have Verizon DSL, with a Westell Versalink 327w modem and an XP computer. The DSL connection worked fine for about a year (though at about 3/4 of the speed it was supposed to have). But after a recent storm, the DSL has had an erratic connection, with terribly slow download speeds (32 KBits/sec). Upload speeds are fine (400+ KBits/sec). Also, i have noted that the connection is always reliable and fast (1.5 MBits/sec) when the phone is connected, whether merely off the hook or actually talking to someone.
    The line to the phone has the proper filter on it, and the modem line does not. The phone is wireless, but since my computer is wired to the modem, this should not cause a problem. To further rule this out, I disabled the wireless reciever on my modem and removed its antenna. Any ideas? Thanks.
  2. Rockn


    Jul 29, 2001
    Ask your provider or phone company to test your phone lines. If they test OK tell them you want a new modem. Have them check your speed as well since you are not getting what you have been paying for.
  3. Couriant

    Couriant Trusted Advisor

    Mar 26, 2002
    First Name:
    "The line to the phone has the proper filter on it, and the modem line does not."

    All phone sockets need to have filters on it. If you are connecting your DSL modem directly into the wall socket without the filter, then that's probably why too.
  4. JohnWill

    JohnWill Retired Moderator

    Oct 19, 2002
    Actually, the DSL modem must NOT have a filter, everything else requires a filter. Here's how I do DSL when folks have a problem with interior wiring.

    Purchase a DSL splitter and install it at the telco service entrance. Run a direct line from the DSL port on the splitter directly to the DSL modem. Connect all of the other phone instruments to the telephone output of the DSL splitter.

    This is as good as it gets for DSL installations, and will usually solve in-house wiring issues.
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