Itll run 150mbps fine. What happened during the speed boost upgrades that changed my modem speeds? Having an exact same issue as discussed in other "Xfinity" threads. They finally sent out a tech (gigabit on w/o) that knew what he was doing & found simple things the others not only did not attempt to figure out but said blah blah blah your within limits to not be our worry... sad. Model: CM1000|Ultra-High Speed Cable Modem—DOCSIS® 3.1 Ready Message 1 of 2 Modem Channels.PNG … This post is now closed. Setup took a couple of attempts but I was up and running. Post the results of that as well as your modem signal levels with uptime, upstream, all downstream channels and uncorrectables included. Some older dual cores can't support high speed testing. I do believe my 979mbps is the fastest I've encountered while reading about other people's problems getting Xfinity to get a CM1000 … Will post later, just wanted others to realize its best to allow them install their equipment 1st, get it working then switch! Welcome to the Xfinity community! Moving forward, he said I should expect a call from his boss with a follow up appt with him, as he's a higher level tech. Just as a FYI the tech should have tested the speeds from your modem to his meter and also via the coax to verify speeds. They didn't. Yes, the cm1000 will have no problems with slower service. To my dismay, the speeds I was now getting were averaging around 340 - 390mbps. acted if he was actually supposed to install, so I opted to go get boxes from a Xfinity store nearby next day & they scheduled another install in case the boxes didn't work. I have a customer provided Netgear CM1000 modem running firmware 3.01.04. For more information, see Set Up the Hardware. Be sure your using a multi processor CPU PC. I don't expect to get 1000 Mbps down but getting at least half of that is desireable. Be sure your using a good quality CAT6 LAN cable between modem and PC. When I check the logs of the modem I do see that there are some Critical notices, I just am not so sure what they mean. We hope you'll join the conversation by posting to an open topic or starting a new one. TIA. I have it installed & it works better than the Comcast modem. If it's still under warranty, get it exchanged through Netgear. He was the one that installed an amplifier claiming the DVR needed it, & even with the amplifier could not be put upstairs because of signal weakness. Select a different version. The next installer was as obnoxious as could be, and just like 1st tech refused to touch or check internet because of my owning the modem. My new Netgear CM1000 was arriving the next day so he had me call to have them provision which I did. Never got the call, had Comcast ask me to fill a survey about the appt via twitter today and we went back into the "lets send signals to your modem" route again. CM1000 v2 ... With NETGEAR ProSupport for Home, extend your warranty … V2.01.15. BR500 VPN Currently Experiencing Intermittent Connectivity Issues. Model: CM1000|Ultra-High Speed Cable Modem—DOCSIS® 3.1 Ready, WiFi 6 Access Points and devices are the future of WiFi. This topic has been closed to new posts due to inactivity. My apologies in how this thread is laid out. Paying for Gigabit Internet with Xfinity Comcast in the Boulder, CO area and seeing disappointing speeds. 4. Anyone else dealing with or has solved this issue? Comcast citing that the Netgear CM1000 is likely the issue, even though it's never been before, and is an approved modem on their site. Hello, I have Xfinity Gigabit and am running a CM1000 with an R7000 router and have never gotten over 500mb down while being hardwired. SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:9d:9c:88;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:9d:9c:88;CMTS-MAC=00:01:5c:7f:9a:6c;CM-QOS=1.1;CM-VER=3.1; SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:9d:9c:88;CMTS-MAC=00:01:5c:7f:9a:6c;CM-QOS=1.1;CM-VER=3.1; Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=38:94:ed:9d:9c:88;CMTS-MAC=00:01:5c:7f:9a:6c;CM-QOS=1.1;CM-VER=3.1; No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9d:9c:88;CMTS-MAC=00:01:5c:7f:9a:6c;CM-QOS=1.1;CM-VER=3.1. Connect the power adapter. Cable Connection and Error Log pasted below. Quad core CPUs are minimum to start with. Be sure your using Ooklas installable speed test app. I found the web front-end to the CM1000 and started messing around with that. My new equipment works, and speed tests will vary anywhere from 400-900 MBPS depending on when I check. So, I've been on the 400mbps download plan for awhile now and received speeds averaging around 470/24 with the CM1000 modem and nighthawk x6 r8000. I am planning to upgrade my cable (Xfinity) modem, and eventually bump up to the gigabit plan. I don't expect to get 1000 Mbps down but getting at least half of that is desireable. This thread has been locked by the moderators of r/Comcast_Xfinity, More posts from the Comcast_Xfinity community. We hope you'll join the conversation by posting to an open topic or starting a new one. I can't get an agent from Comcast that understands the difference in models. If I just leave it there - it will fix itself in 5 - 10 minutes. Thanks. Don't use a web browser as these can effect results. So I just upgraded to gigabit internet and according to the my account info it shows that this modem is compatible with the 1000Mbps internet but customer service is telling me that this modem is NOT … Reset the modem to factory, same speeds :(. I understand the list is at https://mydeviceinfo.xfinity.com/ but this specific model is not listed. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Yes, please, let us know how it turns out. At this point it's turned into lets try and replace your modem with ours and see what happens or we can drop your plan down to around what you are getting (extreme 300) , but I'd have to sign another 2 year agreement. If you have questions about your services, we're here to answer them. Have the ISP check the signal and line quality UP to the modem. Connected cpu directly to modem and that particular speed test site had me over 700mbps, but others (speedtest.net) tested around 200+ slower. Hello Group, I am planning to upgrade my cable (Xfinity) modem, and eventually bump up to the gigabit plan. To install your NETGEAR cable device if you are an Xfinity customer: Make sure that your mobile device is using your mobile data network, not your router’s WiFi network. i am a San Jose customer. First guy to come out (this was channel upgrade including internet install) was for internet install only & I wasn't even aware of this until he had finished replacing AT&T's run up to second story office for the old U-Verse 5268ac, with his cable & he was ready to take off without even letting me check to see if I could pull a web page!!! With that said please do the following. Subscribe for Updates. Line going to upstairs tv was fine and it was the single, short line that was putting the "lighter fluid" to the whole situation!!! Splitters should be swapped with known to be good / new ones to testIf there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct. At this point, I'm pretty sure the modem they give me will receive the speeds I'm supposed to get, but is it just a ploy to get the rental modem costs again? Did you try to do a complete reset on the modem? Has anyone … Note: If Comcast XFINITY is your cable Internet provider, ... You must set up your cable modem before activating your Internet service. I don't have voice from Comcast & I understand I will need a WiFi modem. When speaking with a supervisor at Xfinity, he mentioned I am not getting my speeds because Docsis 3.1 is not active on my modem. I have had 3 techs come out with no resolution. BR500 VPN Currently Experiencing Intermittent Connectivity Issues. CM1000 – Ultra-High Speed Cable Modem—DOCSIS 3.1 Ready. When reading directly from the modem the highest I've seen was about 200 Mbps down. Disable all background running apps before testing. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Glad you mentioned the Arris, I was just looking at those on Amazon actually. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Netgear CM1000 and the Newest Comcast Speed Upgrade Issue (400 to 600mbps) Closed. Like I said, I was getting around 100mbps higher before the 400->600 boost email. CM-STATUS message sent. I have a CM1000 FW Ver. This topic has been marked solved and closed to new posts due to inactivity. But my real issue is that there have been 3 occurences in the last week where the internet has cut out. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:9d:9c:88;CMTS-MAC=00:01:5c:7f:9a:6c;CM-QOS=1.1;CM-VER=3.1; Honoring MDD; IP provisioning mode = IPv6. 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. Reason I also used that was b/c that is what the tech was using while here. ), TL;DR - I lost over 100mbps download speed after an Comcast email about boosting my internet from 400 to 600mbps. A month ago, I received an email stating that my download would be increased to 600. I moved into a location and set up the hardware for gigabit X1. Currently using Comcast CGM4140COM  and want to quit renting. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. CM2000-> Arris AX11000 W31-> GS716v2-> WAX***-AP, WiFi 6 Access Points and devices are the future of WiFi. Good Evening I have been using Blast 100Mbps internet for the past month, set up new service in June. In the excitement of the news, I started checking my speeds daily (after restarting my modem each time) hoping the new speeds would be there. Reboot the modem, connect a PC straight to the modem only with no router, then go to this site and click on the fiber/gig speed test. Missed snapping screen on 1st run off the CM1000 when it hit 1.1gbps+!!!! Under the Devices section, tap Activate Xfinity … Re: Connectivity Issues with Netgear CM1000. Our community is your official source on Reddit for help with Xfinity services. Model: CM1000|Ultra-High Speed Cable Modem—DOCSIS® 3.1 Ready, Def, taking Asus notebook in getting a decent gigabyte wireless card if I can find one at reasonable price. I have this exact model and it works great. Contacted Comcast, many modem signal refreshes, had it provisioned from scratch, etc to no avail. We can help with: technical issues, general service questions, upgrades & downgrades, new accounts & transfers, disconnect requests, credit requests and more. I’m at work, but will do that in the morning. Strange thing is, when I just told them I wanted the Xfi gateway, without even having to call them another tech was at the door in 10 minutes and has spend an hour up at the "tap" working & sometime later today they will return to finish & install their gateway!!!

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