Comcast speed

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Subject Author Date
Comcast speed exray 07-23-2007
|--> Re: Comcast speed Timothy Daniels07-24-2007
---> Re: Comcast speed Andrew Rossmann07-24-2007
Posted by $Bill on July 24, 2007, 8:45 pm
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Andrew Rossmann wrote:
> [This followup was posted to comp.dcom.modems.cable and a copy was sent
> to the cited author.]
>
> exray@amexol.com says...
>
>>I'm in Massachusetts with a Comcast high speed internet account. I use a
>>Toshiba pcx 2200, which is a docsis 1.1 compliant modem.
>>Next question. On my out of state account, I have a Motorola 5120, and it's
>>also registered with comcast. When I bring it home and plug it in, what
>>will happen?
>
>
> Some modems do not work well at higher speeds, and may not support
> PowerBoost, which is being rolled out everywhere. I used to have an RCA
> DCM315 (or something like that) and it maxed out around 5M down.
>
> It may vary in areas, but the most common speed rating is 6000/384, not
> counting Powerboost. 8000/768 is also available in some areas, for about
> $10 more. With Powerboost, you can get about 12000 down for a few megs,
> and 1500 up for a meg or two. It then throttles back to your rated
> speed.

My modem is set at 6144K/512K with TWC/Roadrunner.

> Try the Motorola modem. You may have to go through the
> registration/partitioning routine. Call and give them the HFC MAC
> address. If you connect an unpartitioned modem, you will be restricted
> to a site where you can download software to do the registration. I
> haven't found it reliable.
>
> If your Motorola modem is actually in use elsewhere, it may or may not
> be restricted. Registering it at your new location will probably disable
> it at the old location.

Borrowing a neighbor's modem should be an easy thing to try.


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Posted by exray on July 24, 2007, 6:21 pm
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Gents, thank you for your responses. There are several excellent ideas in
there, and I'll try all of them, depending on what happens with my Motorola
modem.

I won't get home 'til this weekend to try it, and to try the other excellent
ideas.

It did work at the proper higher speed for a couple of months. I went over
to a neighbor's place on Sunday and did a quick speed test on theirs -- a
comcast based system with a rented modem. Evidently they are paying for the
premium tier; speakeasy.net showed a 13 meg download speed on a large file
and 2.2 meg upload. There went the theory that everybody in the
neighborhood was hosed and nobody had noticed.

I'll report on the results.




Posted by Exray on July 27, 2007, 9:54 pm
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Well, the surfboard modem fired up pretty well in my home. It provided a
download speed of about 2.5 meg and upload of 350K or so. Download is
slightly better than the Toshiba, which is about 2.2 or so meg.

Anyway, I called Comcast, gave the gal the WHOLE story -- she couldn't even
see that the surfboard was online; and it was (she verified the surfboard's
MAC address I'd given her by checking it against their records of my
account). So she'd have a hard time playing with its provisioning.

I am now satisfied that my cable modem is not at fault, and there is
something screwy with the provisioning they are doing....but they just can't
see it.

Tomorrow (I hope) I'll hook modem directly to computer and have a look at
the config information. Sunday the cable guy will come; perhaps he'll bring
a modem to play with.



Posted by $Bill on July 27, 2007, 10:13 pm
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Exray wrote:
> Well, the surfboard modem fired up pretty well in my home. It provided a
> download speed of about 2.5 meg and upload of 350K or so. Download is
> slightly better than the Toshiba, which is about 2.2 or so meg.
>
> Anyway, I called Comcast, gave the gal the WHOLE story -- she couldn't even
> see that the surfboard was online; and it was (she verified the surfboard's
> MAC address I'd given her by checking it against their records of my
> account). So she'd have a hard time playing with its provisioning.
>
> I am now satisfied that my cable modem is not at fault, and there is
> something screwy with the provisioning they are doing....but they just can't
> see it.

That doesn't make a lot of sense. If they can't see the modem, they can't
provision it and even if they could see it, the modem could still be the
culprit.

> Tomorrow (I hope) I'll hook modem directly to computer and have a look at
> the config information. Sunday the cable guy will come; perhaps he'll bring
> a modem to play with.

You should be able to do that without direct connection.


Posted by Exray on July 28, 2007, 2:18 pm
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Bill, it makes no sense at all. One modem, the toshiba that normally lives
here, is supposedly provisioned such that it'll provide more than 4 meg
download, and according to comcast's letter of a few months ago AND the
performance for 2 months, it'll provide more than 700K upload.....

The other modem, the surfboard registered by Comcast, was provisioned upon
powerup, performed just a little better than the toshiba on download (still
not nearly 4 meg), and the same on upload, 350K. The comcast tech people
simply saw no evidence that the surfboard was online at all.

I hope I have the time to take down the network and rehook each of the two
modems to the computer only and gaze into the modem to see the configuration
information.


> Exray wrote:
>> Well, the surfboard modem fired up pretty well in my home. It provided a
>> download speed of about 2.5 meg and upload of 350K or so. Download is
>> slightly better than the Toshiba, which is about 2.2 or so meg.
>>
>> Anyway, I called Comcast, gave the gal the WHOLE story -- she couldn't
>> even see that the surfboard was online; and it was (she verified the
>> surfboard's MAC address I'd given her by checking it against their
>> records of my account). So she'd have a hard time playing with its
>> provisioning.
>>
>> I am now satisfied that my cable modem is not at fault, and there is
>> something screwy with the provisioning they are doing....but they just
>> can't see it.
>
> That doesn't make a lot of sense. If they can't see the modem, they can't
> provision it and even if they could see it, the modem could still be the
> culprit.
>
>> Tomorrow (I hope) I'll hook modem directly to computer and have a look at
>> the config information. Sunday the cable guy will come; perhaps he'll
>> bring a modem to play with.
>
> You should be able to do that without direct connection.
>



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