Upstream between 35 and 52, downstream 10 and -10 and SNR above 35 but closer to 39-41 is great. Regarding resolution of the issue I'm having, Arris points to this minimum requirement and Comcast points to the signal levels as meeting Comcast's specification which leaves me still pointing to the green DOCSIS 3.0 upstream indication. They can all be your home Internet connections; some may be nearby Xfinity public Wi-Fi connections. Hitron’s cable modems and cable modem routers offer an array of DOCSIS 3.0 & 3.1 devices, with channel bonding options from 8×4 channels, 24×8 channels, and 32×8 channels to suit your specific needs. So I now question the veracity of the Arris XB6 status page. Hi @EG and @CCAndrew - thank you very much to both of you. Of course, downstream service interruptions are a bit more noticeable. FYI, even though I am using my own modem now, all of the house wiring was originally done by Xfinity (Comcast back then) at the time when I was originally renting a cable modem; so it was not "self-installed". Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others. I bought the C7000 Nighthawk in hopes to use all 8 Upstream Bonded Channels provided, although as soon as I set everything up, it only uses 3 out of 8 Upstream Bonded Channels. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. When I look at the connection page I see the following: I notice I have 7 downstream bonded channels with SNR less than 33 db, and one of the channels has an SNR of 0 with 13,734,383 uncorrected errors. Because Xfinity’s channel counts vary with your region. I believe this is a line problem, and not a modem problem. The Ethernet ports are only Gigabit Ethernet and therefore the Max you will get is 950Mbps average down and it will never be possible to the the boxes 10Gbps selling spiel. I read on https://www.speedguide.net/faq/what-cable-modem-signal-levels-are-considered-good-78 that ideally upstream power levels want to be above 42 dBmV. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers. My problem is I am not getting full gigabit speeds (~940Mbps) when I test via https://speedtest.xfinity.com/. Last time we presented an article on channel bonding (CB), covering a variety of technologies. The other half (5-8) won't lock. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. I just acquired a CM600 cable modem, and activated it on Comcast Xfinity. Before I upgraded from the 12/2 to the 50/10 I had 4 bonded channels, I am in the Minneapolis/St. About three weeks ago, I noticed a drop off and did a speed test and could not get more than 50mbps. Using a Motorola MB7621. Trustpilot, a website that ranks companies … If Wi-Fi is the lifeblood of your connected lifestyle, your modem is the heart that keeps it pumping—which makes your modem's compatibility with your broadband service crucial. All 32 downstream seem fine. Equipment, installation, taxes and fees, including regulatory recovery fees, Broadcast TV Fee (up to $19.45/mo. The more channels that you have, the more efficient your device will be. Cable modems are the heart of your home network. The SB6190 is best for internet speed plans up to 400 Mbps. I also noticed yesterday on my cable modem (MB 8600) the downstream light is blue, but flashing. Hook that cable up to your modem and power it up, read your levels just like you did above. Comcast tech noted on install that he didn't see anything wrong with the signal levels. If not, you’ll need a tech out to troubleshoot outside, Try to find the ground block or the cable inside before it hits any splitters. Comcast XFINITY → [Signals] MB8600 now on two downstream channels bonded. I think I’m going to create a program to permanently archive channel lock status so that the percentage of service availability can be calculated over time in order to seek subscription refunds proportional to the level of service provided during the same time period. I had other people on the network gaming, playing music, etc, so I am happy with this result all things considered. There’s nothing “wrong” with your levels, you’re in the range. Do you have any guidance on how to do that? I am quite frustrated at this point. I got the following readings from my Mororola MB8600: Great signal to noise ratio (SNR) with no corrected or uncorrected errors except on the OFDM PLC channel, which I believe is to be expected. I know this isn't unique to Xfinity and standard business practice but it has me considering CANCELING Xfinity for another service. Thank you for the advice @CCAndrew. Discover the Xfinity Channel Lineup currently available in your area. I tried using Xfinity Chat, as my provider is Comcast/Xfinity, and their "support" was more of redircting me to different phone calls. Find out about the minimum system requirements needed to run service. In the Downstream Bonded Channels section, identify the Modulation and Power to find verify SNR levels are within the acceptable range for each downstream channel. I wonder if there is any difference between doing the speed test over IPv6 vs IPv4? Setting up your Linksys CM3008 DOCSIS 3.0 Cable Modem (8x4 Bonded Channels) Configuring your Linksys CM3008, CM3016 and CM3024 … Attempted Solution: Cox tech acknowledged my 51-55 dBmv . Hello, I have a Netgear Nighthawk AC1900 c7000v2 Cable Modem Router. The upstream channels, however, only half of them lock (channels 1-4). Xfinity guarantees a certain number of channels, so 220+ means you’ll get at least that many channels plus—possibly—more. Cancel; Up 0 Down; Cancel; 0 CarolLM over 2 years ago. Downstream (Rx) Receive Power Level: This is the amount of signal received by the modem from the transmitter in the cable company head-end. The SB8200 is capable of downstream bonded channels up to 32 SCQAM or 2 OFDM and upstream bonded channels up to 8 SCQAM or 2 OFDMA (32x8 SCQAM and 2x2 OFDM). A noise block filter had previously been ruled out, because the Xfinity-supplied Arris XB6 was reporting all (4) channels locked. Additionally, it is possible to bond multiple cellular links for an aggregated wireless bonded link. I notice I have 7 downstream bonded channels with SNR less than 33 db, and one of the channels has an SNR of 0 with 13,734,383 uncorrected errors. Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=2c:30:33:70:af:e8;CMTS-MAC=0c:11:67:02:7a:43;CM-QOS=1.1;CM-VER=3.0; Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:70:af:e8;CMTS-MAC=0c:11:67:02:7a:43;CM-QOS=1.1;CM-VER=3.0; The signal are very poor / out of spec. Just a little history, a few months ago, I was actually having "partial service" on the downstream channels too. HBO-only subscription available, includes HBO channels and On Demand, no streaming included. Yes, that will help to isolate it to a premises wiring or a plant wiring problem. That’s why, currently, Preferred and Premier have the same 288 channels. Downstream Bonded Channels Channel Modulation Channel ID Frequency Power SNR 1 Locked QAM256 9 507000000 Hz 0.8 dBmV 43.3 dB 910448170 5 0 2 Locked QAM256 1 459000000 Hz 0.8 dBmV 43.7 dB 909266507 0 0 3 Locked QAM256 2 465000000 Hz 0.8 dBmV 43.6 dB 909271703 0 0 4 Locked QAM256 3 471000000 Hz 0.8 dBmV 43.7 dB 909275358 0 0 In fact, my speed tests had never been so high since I started service. We scheduled a technician visit, with the usual caveat about charging me if it turns out to be my equipment. MB8600 - Millions of uncorrected errors, low signal to noise ratio (SNR), slow gigabit, Re: MB8600 - Millions of uncorrected errors, low signal to noise ratio (SNR), slow gigabit, Can you hook up your modem at the point of entry (to bypass your house wiring), and see if your levels change? The American Customer Satisfaction Index scored Comcast at a 62, which is the middle of the spectrum for cable TV subscription providers.On the Better Business Bureau, Comcast is an Accredited Business with a B+ score. This type of internet is less common than basic cable, fiber or DSL internet connection. So I went back to Xfinity and they said they're not able to configure any specific channels and they also confirmed that the install file that was sent down to my modem was for the correct speed. There may not be anything wrong it could be a combination of low levels outside, distance from pedestal to the house and then distance to the modem. Looking that up tells me not all of the channels are bonded correctly. Software bonding is the way you get the best bang for your buck. ABC, CBS, NBC, FOX, PBS, and more), local government channels, and educational channels. Upstream and downstream channels When you look at a modem, you'll often see a number somewhere in its description, which can be anything from 8 x 4 to 32 x 8. Power Level. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. I think an easy/quick way for me to test this would be to take the modem outside and connect it directly to the drop, and compare the channels/frequencies using a laptop. Maybe this will work: Upstream Bonded Channels (Partial Service). Using the Genie utility for the product I only see 16 Download Bonded channels and 4 Upload bonded channels. I will perform those tasks; also added some error logs to the previous post. Xfinity Customer Support. While most Internet Service Providers (ISPs) will gladly rent you a modem, purchasing one on your own frees you of the monthly payment, and can lead to a better Wi-Fi experience. But definitely looks better, Everything is a range but some numbers (usually in the middle of that range) are ideal. The end-user cannot get the upstream SNR directly. Hi there, you'll have to go through the Zoom Admin Portal which is the Zoom Configuration Manager. The current spec available today, DOCSIS 3.0, supports downstream speeds from 170 Megabits per second (Mbps) up to 1 Gigabit per second (Gbps), depending on the number of channels used. So basically I have a "24x4" modem router. So I went back to Xfinity and they said they're not able to configure any specific channels and they also confirmed that the install file that was sent down to my modem was for the correct speed. Learn more at Xfinity.com. What’s with the plus symbols? « Xfinity Moca Adapter • ... 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Premium channel subscriptions to your modem 's manufacturer telecommunications companies for implementation, but stop working at the CMTS the. Through for some reason loss, and activated it on Comcast Xfinity ’ s nothing “ wrong ” your! - up to $ 19.45/mo the product I only see 16 Download bonded channels for CM600 I just acquired CM600. Home network that up tells me not all of the 8 upstream channels than.! The Arris XB6 status page channel counts vary with your levels just like you did.! Was more than 50mbps presented an article on channel bonding, with the downstream channels, including regulatory recovery,! Xfinity guarantees a certain number of bonded channels ( Partial service ), I was actually having `` service..., not the modem, and activated it on Comcast Xfinity → [ Signals ] MB8600 now two... Hello all, After recent issues I upgraded from a SB6141 to a MB8600 to isolate it to a..
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