[TriLUG] Replacement cable modem ( 8th )

[John Frasnklin via TriLUG]

Be careful when shopping for cable modems via CL.  Check the model numbers and verify it will work with your service’s need for how many downstream channels and what DOCSIS standard.

Cable companies prefer customers to use cable modems that are over provisioned by a couple channels.  If you’re subscribing to a 300Mbps plan, and have an 8 channel DOCSIS3.0 modem, then yes, the 343Mbps on the eight channels will let you download at full speed …. as long as none of your neighbors are also using any of the channels you’re locked on.  By over-provisioning, they can better guarantee that you’re getting the speed you pay for, and why they sometimes bug you to upgrade your modem.

Also make sure the seller has the right power supply for the device.  I picked up a router one time and burned it out flashing DD-WRT on it, because the guy gave me a power supply with the wrong voltage.

jf
-- 
John Frasnklin
franklin at elfie.org



> On Sep 8, 2022, at 8:10 PM, David Burton via TriLUG <trilug at trilug.org> wrote:
> 
> The Triangle has many people who've replaced their cablemodem service with
> Google Fiber or AT&T Fiber.  So you can probably pick up a modem on
> CraigsList or similar.
> https://raleigh.craigslist.org/search/syp?query=modem&min_price=&max_price=
> 
> Dave
> 
> 
> On Thu, Sep 8, 2022 at 7:13 PM Brian McCullough via TriLUG <
> trilug at trilug.org> wrote:
> 
>> On Thu, Sep 08, 2022 at 06:56:09PM -0400, Triangle Linux Users Group
>> discussion list wrote:
>>> Think DD-WRT
>> 
>> Thanks Roger.
>> 
>> I didn't know that DD-WRT did anything in Cable Modems.
>> 
>> 
>> Brian
>> 
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