Day 1 of activation, all four upstream channels bonded. I've had TWC send "refresh signals" to … Support. out of my modem's 32 channels?!? Screen shot of the channel statistics attached. What about the CMTS? I'm currently testing both Netgear and SA Docsis 3.0 modems with IOS 12.2.33(SCC3) and I cant seem to get it working right :| I'm seeing modems registering as MTC-modems (/UB) with only one US (with two in the configured bonding group). Additionally, it is possible to bond multiple cellular links for an aggregated wireless bonded link. 24x8 channel bonding. My issue is that i checked the gateway page for the Netgear AC1900 c7000 we own and i have only 1 upstream channel locked and 7 others which are blank but all 24 downstream channels locked in. Is my modem broken? ... Posted January 25, 2015. One of my colleagues, Frank Eichenlaub, has seen upstream CNR degraded by as much as 16 dB because of misaligned fiber links! The modems will connect to the cmts fine and the downstream will bond with 8 downstreams just fine. Interestingly, upstream light is green (indicating DOCSIS 3.0 for upstream/send)? Signal to Noise Ratio 38 dB. Interestingly, the per-channel reduction doesn’t exactly follow the basic P max – 10*log 10 ( N) relationship. Channel bonding can increase your internet speed by nearly 50%. I am using an SB6190 Arris. I used to have Comcast's 105 Mbs service, which uses 4 bonded channels downstream and 2 bonded channels upstream. Verify all cable connections and try resetting the modem. For the traffic above, two downstream channels and one upstream channel are required, whereas a typical CMTS configuration has a 4:1 or 6:1 upstream:downstream port ratio, the inverse of what is needed. Channel bonding provides cable operators with a flexible way to significantly increase downstream speeds to a maximum of 160 Mbps, and upstream throughput up to … Ideally, it should be as close to zero as possible. It has 8 downstream and 4 upstream channels. For ultra-high-definition (UHD) television, only three or four channels would fit on a 36 MHz transponder. These Quorans are beyond knowledgeable about such things. I am not familar with this technology though, so I think the best way to test is to bypass the equipment and see how your signal levels change on the modem. Day 1 of activation, all four upstream channels bonded. Provides internet access to a single device. Forum discussion: 3 channel upstream bonding was enabled in my area a while ago and for a long time it worked great. You can use either Wi-Fi or Ethernet. This means if you have a download speed of up to 6 Mbps, you could potentially get up to 12 Mbps with channel bonding. Also, the signal to noise ratio is 0 on one of the downstream channels (between 38.3 and 39.0 on all others.) When multiple upstream bonding groups are configured under a MAC domain, the utilization is unfair. None - multiple upstream channel is in use: Blinking Blue: Negotiating multiple upstream bonded channels. Hello, This is my first post I've been having issues with my internet connection for a while now specificaly packet losses at peak times which would hit 25-30%, and during the day they linger around 5-10%. The power level on all downstream appears to be good (1.5-3.3). Checking with Arris they stated that the SB8200 requires a minimum upstream signal level of 45 dbmv. And it is not his job to do so. A 16-QAM 3.2 MHz upstream channel will deliver about 8-9 Mbps net. This feature balances the utilization only if there is one upstream channel bonding group configured per MAC domain. To achieve Gigablast or Ultimate speeds, a DOCSIS 3.1 modem is required. You'll have some downstream channels and also some upstream channels. So, because you're bonded you usually can only max out one line or in speed tests? I know there is one solution on the Comcast forums. It allows me to get over 10 Mbps upstream speeds. Neither Microsoft nor macOS computers can bond two different connections on their own. Increasing your internet connection speed would allow for more devices to be connected at once or for better quality online activities, such as streaming or gaming. The solution was to add cable mtc-mode under cable 1/0 and cable 1/1. Has anybody succeeded in combining Cable Modem steering with Upstream Bonding ? Connecting a Wi-Fi router to the SB8200 is recommended when there are multiple client devices in the home network. Instead, they use only one connection at a time. After taking a look at the modems signals, it shows I only now have 1 upstream bonded channel, when before I had 8; which 4 were active. The modem indicates 3.1 / blue on the downstream but the upstream is showing 3.0 / green. See modem teaming . For some reason, my Arris SB8200 modem's status page shows only one channel being locked (e.g. Upstream bonding was only working on one channel. Connect your computer to the first DSL line. DOCSIS 3.0 gains bandwidth by bonding together 6MHz channels, each of which can carry about 38Mbps. The SWM-8 uses 2.3Mhz, while your cable modem upstream is 23Mhz+. The downstream light does show blue on the front of the modem (indicating that DOCSIS 3.1 is being used for downstream). (8x4 modems) However, it appears that the modems will only bond with one upstream channel, and that channel will vary from modem to modem so its clear they're all being used. These are classified into two types, upstream and downstream. Channel Bonding. Hello, I have been working on a 16x4 configuration with a uBR10k in a lab using docsis 3.0 modems. Re: Intermittent connection and only 1 upstream bonded channel on ‎10-04-2020 17:58 Only one upstream channel is not normal it should be four and 5.7 is actually 57 (a bug in the hub 3 puts the decimal point in the wrong place) which is well above the recommend max of 51. A 64-QAM 6 MHz downstream will deliver about 28 Mbps net throughput. The first step is simple. My modem is a fairly new Cisco DPC3008. You can view bonding by logging into the modem.Verifying the Upstream Channel Bonding ConfigurationUse the following show commands to verify the upstream channel bonding configuration:•show cable mac-domain upstream-service-group•show cable fiber … Its probably more likely that your area is not congested enough to warrant them opening all 4 upstream channels. ), but only 4 upstream channels, out of the 8 available on my modem. Frequency 675000000 Hz. Today I upgraded to a 24x8 channel DOCSIS 3.0 modem (The Motorola MB7621), from the 16x4 channel modem supplied by Spectrum. If I remove the US attribute masks I can get the modems to However, there is only one Engineer there that knows how to escalate this issue to to get the problem resolved. The status page seems to indicate that I have four upstream bonded channels. A 24-channel modem could deliver 912Mbps downstream, and 32 channels … Solid Green: None - one upstream channel is in use: Blinking Green: Scanning for an upstream channel. Broadband bonding is a type of channel bonding that refers to aggregation of multiple channels at OSI layers at level four or above. After upgrading to the DPC3008, I have only 1 downstream channel and 1 upstream channel. 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. Restrictions: This feature is supported only on one upstream bonding group under a MAC domain. NOTE 1: A typical setup for Internet access consist of connecting one computer or a Wi-Fi router directly to the cable modem. used?) Each one has separate power levels and SNR listed for it. Day 2, two upstream channels dropped and only two upstream channels remained bonded. Power Level The Downstream Power Level reading is a snapshot taken at the time this page was requested. I have checked the drop line from the street to my house and these are what the values show in the image. The bonding of … Relatively soon, there will be DOCSIS 3.0 modems that can handle even more channels. Note: This port is a LAN Gigabit Ethernet port. Verify all cable connections and try resetting the modem. Older version DOCSIS 2.0 modems can only utilize one downstream and one upstream channel at a time and it’s forced to use the channel the cable company’s headend tells it to use. Only one port is active at a time. The current levels provided by Comcast are 38 - 42 across the 4-upstream channels. However, the power level on 1 of the upstream is 0. Only one channel upstream, how to get more? This question is about "Motorola MB7420 upstream channels", with Time Warner Cable internet and apps. My SNR and power levels are all well within acceptable ranges and I bond to all 4 channels upstream. Hello, I just bought a C7000 Nighthawk to replace my SBG 6700ac due to internet drops. Once the modem was activated, it bonded to all 24 downstream channels (yay! When downstream DOCSIS channels are bonded, the per-channel maximum power also drops. My Motorola MB7420 upstream front panel light is green indicating it is only connected on one channel. Downstream power levels should be between -10 dBmV and 10 dBmV. Day 3, one more upstream channel dropped and only one upstream channel remained bonded. Now I only get one blue light on my modem and one upstream channel. And then I noticed this when I looked into my Hitron CGN3ACSMR Modem/router, Only one … Please Reload/Refresh this Page for a new reading 5 dBmV . I will add my answer only due to an A2A. I've had TWC send "refresh signals" to … Downstream Modulation QAM256. The other answers here are vastly more complete than I could hope to be. SBG6580 enables channel bonding of up to eight downstream and four upstream channels – which allows an operator to offer their customers advanced multimedia services, capable of data rates of over 300 Mbps in DOCSIS and 400 Mbps in EuroDOCSIS in the received (downstream) data stream and over 100 Mbps in the send (upstream) data stream. Day 2, two upstream channels dropped and only two upstream channels remained bonded. The modem used to bond to all 4 channels, now it only bonds to 2 channels. Forum discussion: My sb6183 used to bond with 4 upstream channels before I got Maxx upgrade to 200 MB. Channels bonded can be wired links such as a T-1 or DSL line . 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