Cable Modem and Router or Phone Adapter Issues

Cable Modem and Router or Phone Adapter Issues

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Subject Author Date
Cable Modem and Router or Phone Adapter Issues ebrandmark@aol.com 04-25-2006
Posted by ebrandmark@aol.com on April 25, 2006, 2:43 pm
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I have Cox Cable with a Motorola Surfboard Cable Modem. If I connect
the cable modem direct to my PC I get speeds of about 2.2 Mbps as
measured at: http://www.2wire.com/?p=154

But when I connect either a GrandStream Phone Adapter (for AOL Total
Talk VoIP) or a Linksys Wireless router BEFW11S4 v4 my connection
speed drops to about 500 Kbps.

I've contacted AOL Total Talk and they said the decrease should be
about 250 Kbps at max. They are sending me a new device - as this is
when I noticed it.

But the Linksys router is much more puzzling - and the fact that
anything connected to the Cable Modem causes issues is troubling.

I've tried different cables.

I'm guessing there is some setting for the cable modem that is having
problems.

Cox Cable just tells me if I get good speeds from their modem - they
are done.

Linksys has told me to upgrade the firmware - which I did and lower the
MTU which I did - but since upgrading the firmware can no longer do.

Any ideas?

Ed


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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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