USF Review Reveals Several Serious Flaws; AT&T Tries to Package U-verse, TV Now in DirectTV Sale; + more news, That time of year, for Joy and Rate Increases - Internet. Comcast XFINITY → [Connectivity] Horrible upstream power? If connecting your own modem, please click next below to continue. Make sure that the clients without Internet are connected to the SB8200 cable modem with an Ethernet cable or connected to a router's Wi-Fi SSID or Ethernet connection. I suppose that could cause signal issues? Finding Answers in the Xfinity Knowledge Base. Then after a reboot, this happened ( I lost all but one upstream channel:) http://imgur.com/a/5HaFj. We can help with: technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more. Extended upstream power allows modems to send at powers up to 61 dBmV per channel. ANSWERED: How do I log into my Xfinity provided Modem? The specs required by Comcast for signal on a modem for installs or service calls is +10 to -10 for receive power and 40 to 50 for transmit power. Upstream power levels should be between 40 - 50 dBmV. Time To Treat Broadband Like The Essential Service It Is; Starlink Beta Outperforms Most Internet In The US; + more news, Stonepeak Acquires Astound, 6th-Largest US Provider, For $8.1B; AT&T Loses 6 Million Video Subs In 2 Years; + more news, Surprise! I had have an Arris SBG67832-AC and only 1 upstream channel out of 4 was bonding. Your signal isn't as clean as it should be, but I'm not seeing anything that indicates an issue on the lines in the area. Ever since I've had Comcast(1 year now) I've had spotty(at best) service. To setup an Xfinity Gateway, you'll want to to first download the Xfinity xFi app by clicking here or you can download directly from the App Store or Google Play. uniqs 1015: Share « [NEWS] Comcast Offers Broadband Price For Life Promotion • [Speed] … If you have questions about your services, we're here to answer them. I wonder if the cable in the wall got nicked or if it is bent too far. or it might be some intermittent noise problem or connection causing the return to fluctuate faster than the cmts can adjust the modems transmit level. That is what the FCC calls for to hit the back of tv with. Second that. Desktop Audio...A Little Further Down The Rabbit Hole. What kind of signal levels do I want on my cable modem? Comcast tech support told me my modem was bad. John, thank you so much for checking into this! If it's higher than about 50 dBmV, your cable modem may intermittently go … with the new Modem. That's just what the tech told me. If your modems power is outside that range you may have some packet loss and latency issues or connectivity issues. Comcast XFINITY → [Connectivity] ... my upstream power level went up as high as 59. First it might just be a badly configured CMTS. Connectivity, Equipment, WiFi & Managing Your Network, Using Email & Web Browsers With Xfinity Service, On Demand Movies & Shows, Trouble with a Program, Support for Xfinity Flex Service and Equipment, Voicemail,Call Waiting, Caller ID & Other Features, Personalize, manage and control home WiFi with the xFi mobile app, web portal and app on X1, Mobile app for Smart Communities customers, Questions About Your Bill, Changes to Your Bill, Get answers from Comcast Agents & Customers like you, Xfinity Home Self Help and Troubleshooting Articles, ANSWERED: Comcast's Terabyte Internet Data Usage Plan, ANSWERED: How to Link, Unlink, and Switch Between Multiple Xfinity Accounts, ANSWERED: How to get multiple IPv4 addresses for your modem, ANSWERED: How to get Hulu on Xfinity X1 and Xfinity Flex, ANSWERED: How to Use a VPN with Your Xfinity Internet Service. Think of this measurement as how loud your modem has to scream to be heard by the CMTS. Down load speeds are 150 Mbs upload speed is only 10Mbs. Press question mark to learn the rest of the keyboard shortcuts. I purchased a new Modem Netgear C6300. The best course of action at this point would be to have a tech scheduled out to your home to certify the levels and balance things a bit better for you. Welcome to the Xfinity community! It also says on my modem diagnostic page that my upstream power is 38dbmv, so that's way different than what the tech says! [Connectivity] Arris TM822G Modem - US Light turns Orange, [NV] Problem with Internet connection (I think it's upstream), « [NEWS] Comcast Offers Broadband Price For Life Promotion. The only thing I can think of is that I am in a large (tall) condo and the faceplates on my unit were swaped for dual coax/network cable faceplates. I've called tech support about 8 times and had three tech visits, but the packet-loss problem kept occuring. You had a signal problem before and after logos on your bill changed that is just now presenting itself. If you're interested in moving forward, I will need to know what days/times work best for you. It is almost impossible to have that low of an upstream. My speeds generally seem fine, although I have not gamed lately. ANSWERED: Troubleshooting your XFINITY Internet connection when the US/DS lights are blinking, ANSWERED: How to Program Your Xfinity X1 Remote for TV and Audio Control, ANSWERED: Tips for troubleshooting your Xfinity Internet connection. Our community is your official source on Reddit for help with Xfinity services. Then my power levels on downstream went to about 15. My MAC address is registered and the technical support at Time Warner can see my modem online, they can even reset it. Speed tests are decent but I noticed the modem started getting a lot of uncorrectable. In that context he is speaking of the CMTS, not your modems upstream transmit. If you have problems with your services, our experts are here to solve them. Still only getting 1 Upstream channel bonding. ANSWERED: What is Xfinity Stream on Roku and how does it work? Find solutions, share knowledge, and get answers from customers and experts. Downstream and Upstream Lights Blinking No Internet I am trying to connect to the internet via Time Warner (now Spectrum) internet. 16 Down 4 Up channels. It is a challenge to build a transmitter that can send multiple carriers at the highest power level without generating too much noise of its own. I've had ZERO luck with the crappy modems/routers Xfinity has supplied, so I got my own equipment and have had no issues since. It began with decent power but high uncorrectable: http://imgur.com/gallery/rWjtP. O is the reference for good signal. Any idea on what can be going on and will this affect me for gaming/packet loss/etc? Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. If you are transmitting less than 40 dBmV, your upstream SNR will degrade (If you're whispering and the CMTS is shouting at the same time, they'll have trouble hearing). Currently, early in 2015, modems do not yet support these highest levels, it is common to find support up to 54 dBmV. Do these signal issues cause a speed problem, or is it something I should just monitor? I think you might be confusing Upstream power with down stream power. yea that sounds like the upstream receive power that's -2.9. if it's only -2.9 and your transmit is 38 that could suggest a few things. Press J to jump to the feed. Made the switch to AT&T TV from "UVERSE TV", Movie scenes like the 2 examples I have listed-bully gets a beatdown. So what does blinking green mean? Unfortunately, Xfinity thinks 1.2 TB is good enough when I have a family that now works/schools from home and everyone watches Netflix 4K. Looked into this for you, /u/benwells, and I'm seeing poor upstream power levels going back to 2/20, along with some intermittent noise. My modem has been acting strange for the past few weeks, in the sense of its power levels. Upstream send channel cannot be acquired: Upstream channel is lost : Flashing: IP registration is unsuccessful: IP registration is lost: Verify If Any Clients Has Internet Access. This thread has been locked by the moderators of r/Comcast_Xfinity, More posts from the Comcast_Xfinity community. I thought it was a little strange myself, which is why I posted it here. If you open the user manual and visit pages 6 and 8, you'll notice the upstream LED should be either off, solid amber, blinking amber, or solid green.
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