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No Ranging Response received - T3 time-out
I get this message about every 15 minutes. I have a straight line connection from the exterior box on the house. My modem is a Netgear CM2000 Nighthawk. My power levels are good both up and downstream. There doesn't seem to be a problem with the modem which is relatively new. This is effecting the s
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Your Home Network
I have my own equipment. I am using a Netgear Nighthawk and I have tried changing the MAC address and I was unable to get the internet to work; forcing me to revert all my changes! I even called xfinity tech support and the person said I have a stati
I have static ip address and would like a dynamic!
I have been getting too many DoS attacks which is slowing my internet service! I want a dynamic internet service! I want my ip address to be constantly changing! Why they say dynamic and give you static? I looked online the only people getting static ip address are businesses not regular consumers?
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Wired Home Network
I have Xfinity internet, and use a Netgear extender to reach my gaming PC. My Modem is downstairs and my PC is upstairs, nearly on the other side of the house. There are wall jacks all over the house where it looks like ethernet cables can plug in (and I've plugged some in when I thought it would wo
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Your Home Network
Thank you for clearing it up! I had heard about CGNAT thinking it might be that but went off of someone else's post claiming that 100.x.x.x is not in the range of CGNAT. I just didn't dig into it enough with the actual range to compare what I was see
Getting Double NAT with my Netgear C6300 in bridge mode
Decided to get dedicated devices for my home network to allow more control and make my Netgear c6300 cable modem/router combo into just a modem. Put the Netgear in bridge mode which is turning off router mode which disables the NAT per the manual. Hooked up my new dedicated router and was getting a
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I'm on the 200mb plan but having the same problem, have had 2 techs come out and tell me itss my modem even though i have a brand new arris supported modem, and last night bought a brand new netgear modem with the same results, both only get 93-94 me
Blast Internet Download speeds up to 400 Mbps only getting 90 mbps
Hello, i currently have the Blast!® Internet Download speeds up to 400 Mbps package and i checked speedtest.net and I never get above 90 mbps, is there something wrong?
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Accepted Solution
... Netgear CM2050V ... I don’t get more than around 45Mbps upload. ... The 2050V has been "temporarily" removed from the "approved for higher upload speed" list. See https://forums.xfinity.com/conversations/your-home-network/faster-internet-speeds-
Only getting 44Mb upload connected directly to approved modem on 1.2/200 plan
Hi all, I recently upgraded my entire network to take advantage of 1.2Gb+ speeds, mainly for the 200Mbps upload speeds from Xfinity’s network upgrade. I have the one approved modem (Netgear CM2050V) connected directly to my PC via CAT6, with a 2.5Gb NIC. While I get 1400Mbps speeds down, I don’t get
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Just an update - I searched for available modems, and can see that either Arris S34 or Netgear CM3000 would support higher download and especially upload speeds; however, both modems are recommended for use with mid/high-split technology. I don't kno
Which modem should I purchase?
I keep getting messages from Xfinity that my current modem needs to be replaced/upgraded to take full advantage of the Gigabit plan I'm on. I generally agree. My modem is Motorola, it is very reliable but old and needs an upgrade. Currently my download / upload speeds are ~900 / 24 MBs, and this is
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Which modem works?
I have been researching upgrades to a 3.1 modem but I see so many with problems yet they are on the approved list by Xfinity. Are there any that actually work? I saw both the MB8611 and the S33 have good reviews but unfortunately have had major problems setting up with Xfinity. i currently have a Ne
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Your Home Network
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Brand new modem linked to another account and can’t register
I’m a new Xfinity customer and purchased a new modem. When trying to activate it through the app, the app gives me an error page right after logging in suggesting I contact live chat for help. I’ve gone through many agents all trying to connect my modem but they all come to the same conclusion and c
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Customer Service
It's not port a forwarding problem, it's a local resolving issue. I don't think Xfinity equipment will do that DNS loopback to the internal machine for you. Some netgear gateways will. If you want it to work reliably, you can do that with a
Port forwarding not working from inside network
Hi, I have successfully opened some ports pointing to my server. I have a custom DNS entry to point to my IP, let's say server.home.com. When I access https://server.home.com from outside my home, everything works fine. When I access https://server.home.com from inside my home, request fails. I have
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Modem re-provision after ROUTER change?
I own my equipment - Netgear Nighthawk CM3000 modem. Used to have an ASUS AX88 router. I swapped the router for an ASUS BE88, and that somehow tripped the MODEM to require re-provisioning. I'm trying to understand why. The only think I can think is that the old router only had a 1G connection to the
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Customer Service
@stevix55 I'm sorry to hear you're having similar issues that I'm having! Did you notice if Comast did any sort of 'enhancement' or work in your area before the connectivity issues started? My boyfriend had 'enhancements' done last week, and since t
Intermittent Internet Connection
Hello, I'm at a loss for what else to try! I've been having intermittent internet issues for about 4 or 5 months now where my internet disconnects EVERY DAY. My download/upload speeds are fast (they do not slow down), and then randomly my internet cuts out on both the ethernet and wifi (my laptop th
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I checked again and I do not have it on, I have the xFi app and it looked multiple times. I was in contact with comcastJohn about this issue. I have a netgear router that I have connected to the back of the xFinity modem and I had to disable the DHCP
Can't load certain websites and apps on my laptop and phone while connected to my xFinity router
Just as the subject says. I can not load certain websites on my laptop and I can not load certain apps on my cell phone while connected to my xfinity modem/router. Just a little background: 1) I have a netgear router connected to the modem. I only use this router to connect to a system via ethernet
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Thanks for getting back to me. It appears that the requested downstream/upstream signal and power levels are not available when I log into the Netgear cm2050v cable modem dashboard. However I'm sure those levels were checked when I talked to Xfinity
Like others, cannot hear person talking with on landline, but they can hear me
I have the same problem as those who created the similar November 13, 2024 post. I have had this issue since Jan 26 (shortly after Comcast did some local "network upgrades" in our neighborhood). In addition to upgrading my cable voice modem (CM1150V to CM2050V) for $300, I did the usual troubleshoot
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... 500Mbps plan ... My Modem is a NETGEAR CM500-100NAS ... Perhaps not the root of your problem, but you should be aware that Comcast/Xfinity rates the CM500 for use with plan speeds "Up to 372 Mbps". See https://assets.xfinity.com/assets/dotcom/pr
Packet Loss - Testing Results - It's on Xfinity's end
Hello Xfinity, I recently moved to a new apartment, where I've signed up for the 500Mbps plan. I've notice frequent ping spikes when playing online games, as well as large amounts of packet loss when the spikes occur. Checking my modem levels, they seem ok/good. DS Power is within 6dBmv, and SNR is
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... Netgear C6250 ... comcast tech said its not compatible. What Internet speed tier are you trying to use it with? The "All Compatible Devices" link near the bottom of https://www.xfinity.com/support/devices says it's approved for use with p
Modem is not compatible
After looking on Comcast/Xfinity site and chatting with a rep I purchased a Netgear C6250 Dual band modem that was listed as compatible. After 2+ hours of trying to register it comcast tech said its not compatible.
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Have you solved this? I have exactly the same issue but only one computer. Ethernet shows as XFSETUP-1409 and gets very erratic speeds, usually under 400 MBPS, while wifi runs 800-900. I have the XB7 Gateway (which has one weird, inconsi
I have 4 computers hard wired (ethernet) to my comcast router, but three connect to my SSID and one connects to an XFSETUP one
Subject somewhat says it all. I pay for gig ethernet and the 3 computers that connect and show my SSID as the network speedtest's around 950-1050mbs. The one that identifies to XFSETUP still gets internet, but taps out at around 90 mbs. Not sure when this started as its used by my wife who isn't int
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Internet Outage Every Single Day Requiring Router Reset
For the last 2-3 months we have been having our internet (WIFI) go out every single day causing us to restart the router. I have spoken with Xfinity and even scheduled an appointment to have a technician come out. After the appointment was scheduled I received a notice that Xfinity was able to deter
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Your Home Network
XFINITY Home touchscreen with home Wi-Fi
I have the Xfinity home security touch screen from my service which is currently canceled - they left me the touch screen and the Netgear wireless router. The unit still chimes for door/window alerts. But it also double beeps every 10 - 15 minutes due to lack of Xfinity service connectivity ? Two qu
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Devices and Equipment

@strykerzr350 wrote: Just as the question is in the subject. I would like to know this because I would like to use a more current device than my Netgear CM700. Is there anyway to know this without actually purchasing a new modem and activating it? Wh
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How can I find out if my town has DOCSIS 3.1?
Just as the question is in the subject. I would like to know this because I would like to use a more current device than my Netgear CM700. Is there anyway to know this without actually purchasing a new modem and activating it? What I do know is there is 32 downstream locked channels and 4 upstream l
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