US Cable Support > Comcast HSI > Getting Comcast, need some help

reply to JohnInSJ

Re: Getting Comcast, need some help

Did you *read* the service agreement you signed?

It's right there.

»business.comcast.com/terms-condi···dex.aspx

Specifically in the AUP
»www.comcast.com/Corporate/shop/b···use.html

quote:

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Are there restrictions on data consumption that apply to the Service?
The Service is for commercial use only in a small, medium, or large business as determined by the applicable Business Services Agreement. Therefore, Comcast reserves the right to suspend or terminate Service accounts where data consumption is not characteristic of a typical commercial user of the Service as determined by the company in its sole discretion, or where it exceeds published data consumption limitations. Common activities that may cause excessive data consumption in violation of this Policy include, but are not limited to, numerous or continuous bulk transfers of files and other high capacity traffic using (i) file transfer protocol (“FTP”), (ii) peer-to-peer applications, and (iii) newsgroups. Your business must also ensure that its use of the Service does not restrict, inhibit, interfere with, or degrade any other person’s use of the Service, nor represent (as determined by Comcast in its sole discretion) an overly large burden on the network. In addition, your business must ensure that its use of the Service does not limit or interfere with Comcast’s ability to deliver and monitor the Service or any part of its network.

If your business uses the Service in violation of the restrictions referenced above, that is a violation of this Policy. In these cases, Comcast may, in its sole discretion, suspend or terminate your business’ Service account or request that it subscribe to a different version of the Service if it wishes to continue to use the Service at higher data consumption levels. Comcast may also provide versions of the Service with different speed and data consumption limitations, among other characteristics, subject to applicable Business Services Agreements. Comcast’s determination of the data consumption for Service accounts is final.

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I got a Motorola SB6120 modem installed.

I don't have DOSCIS 3.0 service, but it's working nonetheless.

It says I have 2 QAM256 bonded channels, 36 dB SNR, and 7 dBmV for for download. [3] QAM16 channels and 37 dBmV for power for upload. Are these values good?

Also DHCP is on, but there is option to turn it off; how do I turn it off? I already have a router.

Not exactly.... what tier do you have again?

reply to S60

reply to nate1234

oh, you should be ok... what kind of speed are you getting

Here's the speeds I'm getting in a middle of a 5GB download:


This is what my modem stats say:


I also did a few tests, I hope these a okay results:
»/linequality/nil/2557678
»/linequality/nil/2557673
»/linequality/nil/2557644

reply to S60
Glad to hear your internet service is treating you well.

Since you are in a DOCSIS 3 area you should be able to get smething higher than 16/2. Though overprovisioning o the speed and lengthy PowerBoosts (at least these days) may make 16/2 a decent enough option.

I'm not sure where the other posters got the actual figures for the business tier soft caps from, however I know that eventually Comcast will tell you to move up a tier or three if you push too many bits over a cable connection, commercial or not. 250GB is the residential soft cap. Commercial is significantly more, but it's still not a dedicated connection (MUCH more oversubscribed than FiOS...which in GPON areas is actually UNDERsubscribed).

reply to S60
Those results are exactly where they should be; Comcast tiers are actually overprovisioned by 10% on download and upload speeds to make sure people test at the speed tier they're buying. So theoretically you can do 17600 kbps all day long on your connection (after PowerBoost wears off).

Modem levels look to be right where you want them to be, and channel bonding appears to be working despite not having a DOCSIS 3.0 tier (yay for DOCSIS 3 modems). That said, doesn't look like you're getting any speed boost from dual channels, though having two means you'll be more likely to get 100% of your rated speed 100% of the time.

What's interesting is that your upstream modulation is DOCSIS 1.1 rather than DOCSIS 2.0. I've never seen a DOCSIS 1.1 upstream channel along with bonded download channels, but that's what you're getting. Maybe try rebooting your modem to see if it'll grab a higher-modulation upstream channel. If you're actually in a DOCSIS 3.0 area you should be getting a DOCSIS 2.0 channel and 5+ Mbps of upload bandwidth (here the number is around 8-11 Mbps on my non-D3 modem).

It isnt really DOCSIS 1.1 modulation, Comcast switches between 16, 32 and 64QAM based on congestion and signal noise. I have the 22/5 service and am on 16QAM Modulation, and get 8-9mbps up (Powerboost). Comcast is currently rolling out 64QAM in all markets, and then Upstream channel bonding.