An Xfinity tech was out today. MoneySavingPro believes everyone should be able to cut their bills and choose the best deal based on their individual requirements. Added Spectrum's streaming package that had all of the OTA channels plus the C-SPANs and public channels. The ISP cannot do anything about that until Netgear gives them a new firmware to push out. When I plug anything else (ie PC) into ethernet ports 2,3,4 nothing happens. According to Cable Digital News, that's not due to Comcast cutting corners—DOCSIS upstream channel bonding probably won't be available until late 2008 … Services are branded Xfinity in areas where digital triple play services are available. This has to be a firmware issue as it only happens in version 2.02. My ISP is comcast. My internet works fine, and my speed matches my tier (250 Mbps). Programming and channel line-up subject to change. Comcast says everything is good at their end, all signal levels are great (both at modem and CMTS), correct firmware and provisioning file are in place, I'm getting provisioned speeds, and therefore it must be Netgear problem. He found a noise block filter at the pole. If it does, then both NG and CC need to address this. The ISP should be able to fix this. I put the CM1150V back in place, and it still only locks (2) channels. Either the CM1150V is accurately detecting a partial service issue at Comcast and correctly flashing the Upstream LED (but failing to display that status in the GUI), *or* everything is just fine at Comcast and the CM1150V is erroneously flashing the LED. So I don't think the Arris XB6 was actually locking those channels either, even though it said it was. Have also factory reset it. With two, your max upload capability would be around 60Mbps (rounding down), which probably far exceeds your tier. DOCSIS 3.1 supports a downstream throughput with 4096-QAM and 25 kHz subcarrier spacing of up to 1.89 Gbit/s per 192 MHz OFDM channel. One Comcast Center, Philadelphia, PA 19103, Includes the top 100 shows preloaded and ready to watch, Just $20 more per month (for the first 12 months). Are you willing to work with us to debug if this is CM or Comcast issue? i guess that's why there were black tabs in port 2,3,4. -. You might try another same model cablemodem to see if the problem continues. The CM1150V units (both of them) also have a constant stream of T3/T4 timeouts, roughly every 30 seconds. The XB6 locks all (4), so it doesn't seem to be a wiring, interference, or headend problem. I am curious about this as well. A noise block filter had previously been ruled out, because the Xfinity-supplied Arris XB6 was reporting all (4) channels locked. Day 2, two upstream channels dropped and only two upstream channels remained bonded. Day 3, one more upstream channel dropped and only one upstream channel … That implies a CM1150V firmware problem, erroneously flashing the LED when no problem exists, but I don't have enough data to conclusively prove that. I purchased a CM1150V to replace an Xfinity (Arris) XB6. Thanks to @vkdelta for help and supporting information, which helped me explain/prove the problem to Xfinity so they would come fix it! The CM1150V is activated (data and voice), the XB6 is not. If you require a higher internet speed of 1Gbps, then this is not the right modem for you, you will need the DOCSIS 3.1 modems instead of MB7621. Interestingly, upstream light is green (indicating DOCSIS 3.0 for upstream… Thanks for the assistance! This router meets the DOCSIS 3.0 standard and will work up to a 400 Mbps download speed with Comcast Xfinity. Here’s a list of all channels available Comcast Xfinity TV, including HD (High Definition) and SD (Standard Definition) feeds. Try a CM1100 modem and see if it does the same thing. Just want to know that someone is working on it, and that it will eventually be addressed. You'll have to keep in contact with NG and CC. The constant T3/T4 errors are gone as well. 6. The LED keeps flashing as if some channel weren't locked, but in the Netgear GUI everything shows locked (I suppose the GUI could be wrong and the light could be right, no way to tell for sure). I disconnected the XB6, connected the CM1150V, and powered it up. :-). When I was only getting 2 of the 4 upstream channels, the GUI said "(partial service)" above the channel list AND the upstream light was flashing to indicate "partial service". It is a Comcast … While our site doesn't feature every carrier or provider available on the market, we're sure you'll be able to make significant savings from the information we provide and the free independent tools we create. All downstream signal levels are good, between 0 and -3 dBmV, with SNR between 38 and 39. or connector? Never solid green like all other lights. You can step up to 24 upstream and 8 downstream channels on this cable modem. We hope you'll join the conversation by posting to an open topic or starting a new one. The upstream light is always flashing green. 41178878; I never heard back after my last follow-up. However, this information may be different than the information provided by the companies we cover. $15 more provides access to all … Comcast XFINITY TV offers several premium movie channels, beginning at $10 per month. Tried a couple power cycles, then a factory reset. Now that I'm getting all 4 upstream channels, the "(partial service)" text is gone from the GUI -- but the upstream light is still flashing. Netgear dodges the question of the modem reporting both "full service" (via GUI) and "partial service" (via LED) at the same time, and just keeps telling me to talk to Comcast -- but Comcast has done everything Netgear asked, and the problem remains. Today we’ll look more into depth at DOCSIS 3.0 or D3 channel bonding—CB for … Its sort of like a car with a temp gauge that says everything's fine, but the overtemp light is flashing. I have the same issue on 1.01 US locked 3 channels with no issues.. when it went up to 2.02 I had TONS of T-3 and T-4 errors and US would not lock more then 1 channel... tried other brand modems and they locked fine with no issues or T-3 / T-4 errors. The CM1150V is only locking (2) US channels on the same cable and connector. My previous Arris never had a problem once. Good luck getting it resolved. used?) Xfinity offers a number of different packages, so the exact number of channels will be based on your choice of package. As with the XB6, the downstream shows 31+OFDM, good power levels and SNR. Yes. I will PM you with additional details as requested. Again, the Arris XB6 locks all (4) US Channels on the same cable and connector. Good news: all of the Latino channel lineups are also available with the XFINITY bundles, including the XFINITY Triple Play and Double Play. I am curious about this as well. Checking with Arris they stated that the SB8200 requires a minimum upstream signal level of 45 dbmv. The additional ethernet ports are for the "port aggregation" feature, which allows (if you have latest firmware, a plan with sufficient speed to need it, and a modem that supports it) a multi-gigabyte connection between the modem and the router. While the number of channels isn't as extensive as Dish Network or DIRECTV, the packages are numerous, giving you with much-desired flexibility. The XB6 had been in place, running in bridge mode, for 2 months. If you're on the hunt for a decent provider with a broad range of packages to select from, then Comcast should be considered. These US and DS levels seem to indicate good cable and connections. Already tried a second CM1150V, and it behaves the same. Your not having all 8 channels bonded does NOT indicate any problem. This topic has been marked solved and closed to new posts due to inactivity. 2a. Please reset to confirm if you have 2 or 4 US channels. Upload/download speeds exceeded my plan rating by 20%. ???? BUT THE LIGHT IS STILL FLASHING. That was blocking the two lower frequency channels. I got v2.02.03 flashed the very first time I connected the CM1150V (27-Mar-2019), so cannot compare to older firmware. Also tried an Arris SBV3202 -- it does not indicate any service problems. (Arris and NTGR are running different DOCSIS Radio chips and I have not seen this issue on other comcast plants so far). The modem indicates 3.1 / blue on the downstream but the upstream is showing 3.0 / green. I suspect the flashing LED I'm seeing is a firmware error, and am inclined to believe the GUI (and Comcast) which both say everything is fine regarding signal lock. Not sure if you read my post -- as I mentioned earlier in this thread, I opened tickets with Comcast and Netgear. CM1150V Upstream Channel Problem with Xfinity, Re: CM1150V Upstream Channel Problem with Xfinity, My Setup (Cable 1Gbps/50Mbps)>CM1200 v2.02.03(LAG Disabled)>RBK853 v3.2.17.12, Model: CM1150V|DOCSIS 3.1 Nighthawk® Multi-Gig Speed Cable Modem for XFINITY® Voice. The CM1150V only locks (2) US channels. Comcast XFINITY has got you covered. Disconnect it, connect CM1150V, and CM1150V only locks (2) channels. Xfinity cable TV prices start at $20. I have restarted the CM1150V multiple times over a 48hr period. Not sure if this is related to this post, or if I need to start a new one. Which is correct? Our partners cannot pay us to guarantee favorable reviews of their products or services. The exact price depends on your area and the package you choose. via tickets with both Netgear and Comcast, I feel like I've already gone further than any customer should have to go. I'd use the Arris SBV3202, but it isn't Comcast-approved for future gigabit service which is why I went with the CM1150V -- but am keeping the SBV3202 as a backup / emergency spare. Can do this over-and-over, the problem is NOT intermittent. Free Xfinity Flex streaming box and free Peacock Premium (for internet-only customers) Free premium channels (with select bundles) Final take: Is Xfinity TV worth it? Disclaimer: At MoneySavingPro we try to keep our information as accurate and updated as possible. Also, my router is plugged into Ethernet Port 1. Neither will assign an engineer to actually look at details and interaction between modem/cmts to investigate and determine where the issue is; they instead just point fingers at each other to avoid any responsibility or real investigative work. Some ISPs offer it, not all though. Day 3, one more upstream channel dropped and only one upstream channel … It also allows choice of 10 cable channels. When I plug anything else (ie PC) into ethernet ports 2,3,4 nothing happens. There's no way Comcast would cut legacy upstream bandwidth in half on sub splits systems just to have an OFDMA. This is because of partial service on upstream. Here you'll find the full list, but some examples of music channels that you'll have access to on Comcast cable are FM, Music Choice 90's, Music Choice Adult Alternative, Music Choice Blues, Music Choice Classic Rock, Music Choice Classical Masterpieces, Music Choice Dance/EDM, Music Choice Metal, Music Choice Pop Latino, and more. But my upstream problem IS fixed...  Channel status now shows all provisioned channels locked, and the "partial service" text is gone from the GUI. When I was only getting 2 of the 4 upstream channels, the GUI said "(partial service)" above the channel list AND the upstream light was flashing to indicate "partial service". When Comcast fixed that, the CM1150V (still with v2.02.03) immediately locked all provisioned channels and the t3/t4 errors stopped. Both ran me through all the "basic" troubleshooting (power cycle, check levels, check provisioning file, factory reset, yada yada yada) -- and then just appeared to lose all interest when those basic steps turned up nothing to explain the issue. My question would be: Is it common that not all the channels … Acquire Downstream Channel: This should say "Locked", "OK" or similar. For one, with XFINITY's X1 HD receiver, you can stream Netflix - provided that you have a membership with the service - to your TV with ease. This package is perfect for the general sports nut as it includes the NFL Network, NBA, and the MLB Network. Click on the header to see HD channels or view a list of only … The upstream throughput possible is 30.72 Mbit/s per 6.4 MHz channel (approximately 27 Mbit/s after overhead), or 10.24 Mbit/s per 3.2 MHz channel (approximately 9 Mbit/s after overhead). Try a CM1100 modem and see if it does the same thing. The downstream light does show blue on the front of the modem (indicating that DOCSIS 3.1 is being used for downstream). DOCSIS 3.0 – Channel Bonding • Channel bonding is logical (two phy channels tied together at data link layer) – Increases peak rate, but not upstream channel capacity • Possible physical … I can't tell if my problem is the same or not. Two challenges with my CM1150V which I recently purchsed (using Xfinity). Also, my router is plugged into Ethernet Port 1. It lists the proper frequency for the other (2), but does not lock. Both are connected to CMTS. 2c. The modem provides 32 downstream channels along with 8 upstream channels for DOCSIS 3.0 and 2 OFDM downstream channels along with 2 OFDM upstream channels … 5. I see their logic, but find it difficult to believe that a defect in a brand new CM1150V would only affect locking (2) US and nothing else. For some reason, my Arris SB8200 modem's status page shows only one channel being locked (e.g. I put the XB6 back in place, and confirmed it still locks all (4) channels, so this doesn't seem to be a wiring/interference or infrastructure issue. Additionally, if you subscribe to Limited Basic only with an HD receiver rather than a standard set-top box, you'll be able to watch all the channels in HD without the additional HD service fee. You won't know if it's fixed until NG does a fix and gives it to CC then they have to test it out and make sure NG didn't break anything. Possbile ask about a FW downgrade as well. I disconnected the CM1150V, connected a splitter in it's place, then connected the CM1150V and XB6 (Arris TG3482G) to the splitter. ABC, CBS, NBC, FOX, PBS, and more), local government channels, and educational channels. So why do the other 3 ethernet ports not work. out of my modem's 32 channels?!? Contact the ISP and have them check the signal and channels for you. Odd, that's different (much worse) than what I'm seeing. Having the dealer just tell me to "ignore the flashing light as long as its still running" would not satisfy me. Firmware is reported as V2.02.03. Day 3, one more upstream channel dropped and only one upstream channel … Subscription to the HD Technology fee is required to view HD, except Limited Basic channels. 1. This is on EXACT SAME COAX and CONNECTORS. So basically I have a "24x4" modem router. The only way I see OFDMA would roll out is once an … I don't believe that Comcast has implemented 8 upstream channels anywhere, it's either 3 channels or 4 channels. Still having the same problem. Now that I'm getting all 4 upstream channels, the "(partial service)" text is gone from the GUI -- but the upstream … There are several sports packages to choose from with XFINITY TV service: There are plenty of music channels that your ears will be begging for. For normal operation, connect your router to port 1 of the modem. If the modem is working accept for this one thing, then it may not be critical. However, when I have them both plugged in at same time, only 1 works at a time; meaning only 1 can access the internet it seems. Comes with roughly 80 more channels than the Digital Starter- giving you over 220 channels to watch. It showed (4) upstream channels with good power levels, (31+OFDM) downstream channels with all power levels between 0 and -2, SNR all between 38-39, and 0 correctables/uncorrectables. That said, one downside is that the X1 receiver upgrade can only … The Arris XB6 locks all (4) channels. if you fix the coax/line/plant issues and all 4 upstreams are locked then LED will be solid. This is because of partial service on upstream. NG ticket #41178878; I never heard back after my last follow-up. This provides a peak theoretical bandwidth of 1029Mbps/245Mbps. So I now question the veracity of the Arris XB6 status page. I should just get direct hardwired internet to my PC? Could be bad HW as well. Check out our review of the Comcast XFINITY packages for more information. So at a minimum, Netgear needs to fix their firmware to consistently report status via the GUI and LED. If I unplug the router, the comptuer will start working. Also, is there a way to reduce the upstream channel … If it does, then both NG and CC need to address this. Access to Streampix: a library of movies and TV shows that you can watch commercial-free and unlimited on any device. Limited Basic service required to receive other services. The problem I am having is that I have an ethernet cable run right from the modem to my computer (from port 2), and then an ethernet cable running to my router out of port 1 as instructed in the manual. Xfinity offers over 200 TV channels. 2b. Here's what the XB6 reported for upstream channels: Xfinity says the CM1150V is provisioned correctly, and should lock all (4) channels. Hopefully something will get fixed. He loves thinking outside of the box to build tools that empower consumers to make more informed decisions. Drop, cable ends, moca filter, and single splitter have all been checked and swapped out. I agree, both Netgear and Comcast should be working together to isolate and correct whatever the problem is. 2. Still, it's a $250 piece of equipment so I would eventually like a resolution. My current speed/reliability is fine, so I'm not screaming for an immediate answer. For activation and testing, connect a computer directly to port 1 of the CM1150V. Considering most of their system is only running 3 upstream channels (whether its because there are noise issues or Comcast is being cheapskates is up for debate), adding a D3.1 channel … The package provides you with over 10 channels, including local broadcast stations (i.e. The other half (5-8) won't lock. Comcast cable TV service offers not only the popular local broadcasting channels, but also sports, movie, and international packages that will satiate your cable television cravings. So why do the other 3 ethernet ports not work. The exact cost will depend on your area and the package you select. If not, then return the modem and use something else and come back to this later on. Comcast … In a theorhetical sense, each upstream channel is capable of providing around 30Mbps. Port 1,2 will work together if you enable LAG and have LAG-capable router. Yet I can connect the Arris XB6 and it locks 4 US channels. Learn what speeds to expect with your Xfinity Internet service. Comcast cable TV service offers not only the popular local broadcasting channels, but also sports, movie, and international packages that will satiate your cable television cravings. Activation through Xfinity's portal went smoothly, with both voice and data working. It still would only lock (2) of the (4) upstream channels. Have rebooted and factory reset, but the LED is still flashing. Have you changed anything on your side? The upstream channels, however, only half of them lock (channels 1-4). Both run me through basic stuff I had already done multiple times, like checking signal levels, power cycling, factory resetting, checking that firmware is current -- and then they STOPPED. I opened tickets with both Comcast and Netgear. 1a. Do you have another version of XB6 AKA Technicolor XB6T with you by any chance? Day 1 of activation, all four upstream channels bonded. Day 2, two upstream channels dropped and only two upstream channels remained bonded. As I said, my speeds are as provisioned and service is solid, so it isn't that critical I guess. Obviously something is wrong, with either the service or the status reporting, and it would be nice to know that someone cares about fixing that problem even if speed/reliability isn't impacted. Never solid green like all other lights. I should just get direct hardwired internet to my PC? Comcast … How can we provide this service for free? Correct? Comcast offers cable television, internet and home phone service. That's a different issue...  Xfinity residential service only supports one device (one MAC address) and a single IP at a time. Not sure about your problem -- sure does sound like it is related to the firmware upgrade though since it disappeared when you rolled back. The XB6 always gets (4) US channels, the CM1150V always gets (2). Hopefully someone from Netgear can answer that for both of us. Reconnecting the CM1150V to same connection, it is only locking (2) US channels. Are you one of those people who looks forward to your must-see show each week? Compared to the Digital Economy package, you'll receive close to 100 more channels. Xfinity basically says "If our XB6 works and locks all 4 US, but the CM1150V does not, then the problem is with the CM1150V." If you're looking to compare more television providers, please be sure to check out our buyer's guide to cable TV providers. This is in the same location, on same coax and connector. That said, one downside is that the X1 receiver upgrade can only stream Netflix - not other services such as Hulu and Amazon Prime instant video (as of yet, anyway). You can also take advantage of the X1 Voice Remote and issue commands catered to your viewing tastes. This may influence which plans we compare and review and write about, but it does not effect our recommendations or advice, which are based on thousands of hours of research. Once the tech removed the noise block filter at the pole, the CM1150V immediately locked all (4) channels. Then I'm sure you'll agree that one of the most important aspects of choosing a cable television provider is making sure you get the channels you want. Day 2, two upstream channels dropped and only two upstream channels remained bonded. There might have been an outage on comcast plant. Having already purchased (3) modems and following extensive testing, logging, resets, etc. Last time we presented an article on channel bonding (CB), covering a variety of technologies. It displays the correct frequencies for the other two channels, but doesn't lock them -- and the upload LED continues to flash indicating "partial service". If you want to use Comcast Xfinity Gigabit Service, … Have tried power cycle and factory reset, US light still flashes. Port 2,3,4 will only work if you have Multiple IP service package for different IPs. You can also bundle Comcast XFINITY cable with high-speed internet or XFINITY Voice home phone services to help you save. I procured a second CM1150V, and it behaves exactly the same way -- it only locks 2 US channels. Here are the movie channels available: Looking for a package to satiate your sports cravings? All quality materials and parts as per Xfinity. Tell me to `` ignore the flashing light as long as comcast only 3 upstream channels still running would. Them check the signal and channels for you ) of the additional splitter, but the CM1150V Arris! Need to address this, with both voice and data working Basic.. Different ( much worse ) than what I 'm seeing no problems with the CM1150V back in place router port... 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