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Hi, I have Xfinity modem in 3rd floor in one room and a printer in my loft connected to wireless router. My Xfinity modem use to send signal to the wireless router and my printer and was working. Since I changed to new modem from Xfinity I lost that
Moving my modem to a different room.
Since I can't get a hold of anyone at Xfinity (not even chat), I have to come here. My modem is set up in the laundry room since it doesn't get too hot in there. It's been the ideal place for it until now. I have someone that is going to start working home and their work is requiring an ethernet con
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Upload speeds limited to ~20 Mbps
I have a 1100/300 Mbps plan. I recently upgraded my modem from a MB8600 to Hitron CUDA56 to be on xfinity approved Next Gen Speed Tier equipment. I have restarted the modem multiple times and I have not had any improvement in my upload speeds. Is there any way to have the modem reprovisioned/updated
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Your Home Network
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2 modems
I have to run a hardline out to a green house that can't get wifi due to the nature of the glass structure. Am I able to hook up a second modem/AP to the new line and it'll work? Does it have to be an AP alone? Does it have to run from the existing modem/AP?
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Customer Service
The topology would be from ISP -> modem -> gateway. It wouldn't have been a component in this issue. Cat6 was used, yeah.The modem does have multi-gig NIC, yep. It ended up being a software update to the modem I didn't realize was there.
Ubiquiti UCI pegged at 940 Mbps Down when paying for Gigabit 2x
Currently experiencing our Ubiquiti UCI pegging around 940 Mbps down after several restarts and attempts at different times of the day. We're currently paying for the Gigabit 2x and want to ensure speeds delivered to the modem are as expected. I know that the device is supported for Next Gen Speed T
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@ComcastMartin wrote:We only allow one modem per account for internet service, in most areas. If you wanted to use as a modem for the services, it can be used. FWIW, the Linksys MR7350 is a stand-alone *router*, not a cable modem or a combo gateway
Linksys Router compatability with basic service
My Daughter is moving to Hyde Park in Chicago. The building offers a basic internet connection for $25/month. Can I use my existing Linksys MR7350 Mesh Wi-Fi Router (Wi-Fi 6 Router, Dual-Band Wireless Mesh Router for Home Mesh Network) to boost the signal throughout the living space? Thanks, Wayne
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@jraycjay My issue is that I forgot my last password I changed to after updating from the default admin password: 'password'. I believe Comcast periodically will update firmware, reprovision the modem or send administration information to my modem
Arris SB6190 - Admin Password not working. Before I reset to factory settings...
Will I cripple internet access for my network (for an extended period of time) until Comcast can reprovision the modem or can I expect to have the modem re-initialize quickly and allow me to reset the Admin password for the modem? Appreciate any comments before I pull the trigger this evening.
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tech appointment
Cannot get modem to send internet data to router. Modem just blinks red. May need a new one.
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Your Home Network
Had same problem with Arris S33. The upload speed isn’t supported on my modem until Jan/Feb - guessing your modem is the same. Only Comcast modem can do full upload speed at this point (since plan is so new)
Gigabit x2 Upload Speed Issue
I just updated my plan to gigabit x2 from gigabit. My download speeds increased from 1400 to 2200 but my upload speed has not moved. It has stayed at 40mb. I am currently using a Netgear Nighthawk CAX80 6.0gbps router. My issue seems similar to this one https://forums.xfinity.com/conversations/your-
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adding ... the modem in the x1 set top box is completely separate and on different channels different CMTS (device the X1's modem connects to) etc. it should have no relation whatsoever to the customer modem and its channels used.
TV pixelation when running Internet Speed Test
Hi. I am having and issue where the tx pixelates / freezes. This seems to only happen on a few channels 841, 842, 843. I contacted Comcast last week and was told the channels themselves were having issues and the network team would fix it. It has been good now for a week, but is back now. Whats weir
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Can not check speed to XB8 Through the Xfinity App
I was able to check the download speed to my modem from Xfinity on the app until 3 days ago. I rebooted the modem (just as a routine thing). Since then the app always throws " Something went wrong" Try again in one minute which does not work either. So I have no idea what speed I am getting from Xfi
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Xfinity App
@JimVR4 Can you post your modem logs? Specifically, the error logs, modem software and upstream and downstream levels?
Internet dropouts - DHCP Server Issues?
I'm having connection reliability issues. I've traced it to the DHCP lease constantly being dropped. New leases are granted for 3 day periods but seldom last more than a few hours. I've done all the usual things including restarting my MB8611 modem but the issue persists. My router reports that my I
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Verify that the Arris S34 supports next-gen (>200mbps) upload in my area
I would like to see if someone from Comcast can confirm that the new Arris S34 modem will work with the newer 200mbps upload speed. Right now I have a Hitron Coda 56 modem that is successfully getting this speed (with overprovisioning it's actually more like 340-350mbps), so I would think that the S
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Your Home Network
Hi there and welcome to Comcast. Thank you so much for reaching out to us about the loud noises the modem is making. I am sorry to hear that your phone service is being affected. Now we do not recommend opening our modem to vacuum it. If the modem is
THE GATEWAY / ARRIS XB6-T WIRELESS MODEM, ROUTER, WITH VOIP TELEPHONE JACKS MAKES NOISE WHEN IT COLLECTS TOO MUCH DUST AT THE BOTTOM
MANY OF YOU HAVE THE XFINITY, COMCAST, ARRIS XB6-T WIRELESS MODEM, ROUTER SINCE 2018. This unit replaced the MOTOROLA TOWER which we all liked because it looked powerful and had lots of lights. The XB6-T with the odd shaped rectangle narrower on top and wide at bottom black or white is a fine produc
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As I said, I could not add the modem myself because the Xfinity app did not work. After spending some time on the phone, I finally got to talk to somebody who added the modem to my account, but it still needs to be activated. I have a voice ca
xfinity app not working
I need to register a new cable modem. This needs the xfinity app but the app is not working on my phone. What can I do?
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Second modem/router
I have a modem/router broadcasting Internet from my office on the first floor of my house, but the signal does not reach the basement below it. However, I have a cable outlet in the basement. If I order a second modem, can I connect it to that cable outlet and have it broadcast in the basement? Than
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Your Home Network
I had the same problem with my tv pixelating after installing a new modem. I changed the cables, splitter, tv box, the modem twice and nothing helped. I disconnected the modem and the tv worked perfectly. I reconnected the modem and the pixelation st
Pixelation issues on one tv after getting new modem
My primary cable box has been having issues with the picture pixelating when watching live tv. It started after I upgraded my internet and got a new modem. Xfinity sent me a new modem because the one I had wasn’t fast enough. I don’t think it’s connecting to the new modem because previously when I l
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Thank you for clarifying that. Are you leasing your modem from Xfinity, or do you use your own Comcast approved modem and router?
Internet dropouts - DHCP Server Issues?
I'm having connection reliability issues. I've traced it to the DHCP lease constantly being dropped. New leases are granted for 3 day periods but seldom last more than a few hours. I've done all the usual things including restarting my MB8611 modem but the issue persists. My router reports that my I
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Depending on the model of modem you have, you cannot seperate the bands. Do you know what modem model you have right now?
Is 2.4 ghz supported?
My cameras that i had with at&t no longer work. They will not connect to the wifi. Do i need to buy 5 ghz cameras?
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Accepted Solution
Hello, @RumDawg. I hope you're having a great Saturday morning. I'm sorry to hear rebooting your modem didn't help increase your upload speeds. There are only certain modem models that can support the Next Gen speeds. I don't see your modem type in t
Do I still need to use Xfinity's equipment for faster upload speeds?
I noticed on my account page that for my current internet plan (Gigabit), it shows the speeds listed as up to 1000 Down and 100 up. Do I still need to use Xfinity's equipment to achieve the faster upload? I'm currently only getting 20-22 Mbps for my upload, which I believe is the old speed for the G
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Hi @Kev6 Thanks for coming to our community for help! This is a great question! You can pick up a rental modem at any Xfinity retail store. I have a link here https://www.xfinity.com/local/store-offers. Would you prefer to pick up a modem or have us
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Xfi Gateway
I’m paying for a 400 megabyte plan but it useless because I’ve never been sent an xfi Gateway. How do you get one?
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