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Comcast internet speed improved with non-Comcast hardware

jeffreymartens.com

101–110 of 181 posts

Re: Comcast internet speed improved with non-Comcast hardware

#102
Comcast supplies any new customer with a D3.0 modem from one of their suppliers (Arris, Cisco (now Technicolor) or Technicolor). Some of these models are known to have horrendous wifi. If you get one of the old models, Please please turn to "BRIDGED" mode and buy a decent dual-band 802.11ac router.

OR

go ahead and purchase one of the retail modems and a seperate. If you want option of upgrading the Firmware and controlling your Router, buy a separate modem and separate Router. A customer CANNOT upgrade any Firmware on the modem or if is a Combo device. If one of the Favourite vendor has a bug with Portforwarding or something, your modem is pretty much paperweight unless Vendor is willing to fix it quickly and Comcast can push the FW to you quickly. All this can easily take 3+ months for Urgent bugs.

If you are buying new modems and are on service tier > 100 Mbps, Please buy 16x4 Bonding Modems as minimum

If you are on extreme 250 or 300 Mbps package, Please buy atleast 24x8 or 32x8 modem. 32x8 modems based off INTEL puma6 had a critical latency bug but I have heard it is fixed in the field now.

If you are on Gigabit, you kind of stuck with Comcast modem for now until they let people active DOCSIS 3.1 modems. They can activate for other tiers but NOT gigabit.

edit: grammar

Re: Comcast internet speed improved with non-Comcast hardware

#103

Comcast ripped me off much more than that. My HOA signed a (incredible bad) deal with Comcast to provide basic channels (the ones nobody wants) for $35/unit* * for 3 years. Then, Comcast's rep allegedly* forged the contract to last 8 years instead of 3. The stupid manager lost the emails, Comcast insisted on the (allegedly* forged) 8-year contract and so the HOA paid it until the manager found the original signed con…

Every single Home Owner's Association should immediately die in a hole.

Re: Comcast internet speed improved with non-Comcast hardware

#104

Earlier quoted context omitted.

TP-Link is Chinese crap, please stop recommending it. Thanks. Ubiquiti is fine, and Debian-based, to boot.

Ubnt doesn't respond to security reports, violates the GPL, abandons product lines without warning while continuing to sell them, and sells underpowered devices that don't support basic functionality. But they are really cheap!

I believe the reason they continue selling them is so that companies with existing deployments can expand them with the same gear that already works for them. It's the same for most enterprise-oriented hardware.

What would you suggest instead?

Re: Comcast internet speed improved with non-Comcast hardware

#106
post #30

I used my own modem from the start with Comcast (bought specifically for their service), but after about 6 months I was having problems with the modem being disconnected multiple times per day, and sometimes unable to reconnect for hours at a time. Comcast support insisted that my modem was unsupported, despite it being present on their supported modems list. After about 3 calls I gave up and started researching on m…

Ran into a similar problem with my modem -- the website clearly said it was supported, but three different phone service reps said it wasn't. I went out, spent $100 on a new surfboard modem, didn't help. When they finally sent a tech out, he said my original modem was fine.

Re: Comcast internet speed improved with non-Comcast hardware

#107

Comcast's business practices aren't great, but I will give them credit. I get every Mbps that they claim I am supposed to get. This is plugged into my router (Turris Omnia) and my cable modem (self-owned Arris SB6190). http://www.dslreports.com/speedtest/13090043

You're using a SB6190? You're probably not getting the Mbps you're supposed to be getting, at least not all the time.

Just Google "puma 6 issue" and see the vast issues that chipset has, and checkout http://www.dslreports.com/tools/puma6

Re: Comcast internet speed improved with non-Comcast hardware

#108

Comcast's business practices aren't great, but I will give them credit. I get every Mbps that they claim I am supposed to get. This is plugged into my router (Turris Omnia) and my cable modem (self-owned Arris SB6190). http://www.dslreports.com/speedtest/13090043

Hey, another Omnia user! How are you finding it? Is lighttpd crashing for you?

Re: Comcast internet speed improved with non-Comcast hardware

#109
post #24

Switching to 5 GHz instead of 2.4 GHz has made this magnitude of difference for me in the past. Today, at home, I haven't had dedicated internet connectivity for 4 years. I log in to the xfinitywifi SSID that some of my neighbors in my apartment complex are probably broadcasting via my parents' comcast account and get good speeds. I'm on it right now and speedtest.net shows 30 Mbps down, 2 Mbps up. Plenty enough for…

Yes, this "xfinitywifi" public hotspot is enabled by default on many (all?) leased Comcast router-modems. Seems like many people in my complex are unaware or leave it open. I turn mine off.

Re: Comcast internet speed improved with non-Comcast hardware

#110

Don't use Speedtest.net. The major providers all prioritize their traffic and it gives unrealistic results. I built a graphical console-based speed tester (client+server) that you can run yourself to get a more accurate picture and test between your home and servers you actually use: https://github.com/chrissnell/sparkyfish

Netflix's fast.com speedtest uses Netflix's nflxvideo.net CDN servers and HTTPS so it should be a good model for real-world Netflix video usage. https://fast.com/

Sadly still only providing download speeds, as Netflix (understandably) doesn't care about upload speeds.
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