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Very slow internet speeds --for several years

Hello. We've had slow internet speeds with Xfinity since moving into our house 12 years ago. We've had countless Xfinity technicians to our home. They've replaced cables (inside and outside the home), etc. In short, we've tried everything. Nothing has worked.My current plan provides up to 1000 mbps.

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Your Home Network

1.4K

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voice modem not powering home phone wall jacks

We have our own modem with voice (Netgear CM1150V). Recently activated our xfinity voice service, it is (finally) working. I say finally because there were glitches porting our number over. All is working now. When I plug a phone directly into the modem, that phone works. When I plug the modem direc

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Home Phone Service & Equipment

I have been reading this thread for a few weeks as my MB8611 I bought in October 2022 started randomly rebooting since mid-December. Although not as bad as others, I decided to RMA it with Motorola. I got the replacement today (Feb 7), activated it a

weavb013

commented

2 years ago

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Motorola MB8611 modem keeps restarting - firmware issue

I have owned my own Motorola MB8611 cable modem since September 2022, and since the middle of December 2022 it has been restarting multiple times per day. After a lot of troubleshooting, I figured out that it is related to the firmware, aka software. With Firmware 8611-19.2.20 it is stable, but then

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XfinityBillie - thank you very much for responding. I still have questions. Per https://www.bing.com/rebates/welcome?url=https%3a%2f%2fassets.xfinity.com%2fassets%2fdotcom%2fprojects%2fcix-4997_compatible-devices%2f2024.06.26%2520Full%2520List%2520

GVZ

replied

4 months ago

to the conversation:

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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Xfinity only offers residential Gigabit extra 1200/35 in areas that are still on Sub-Split. Areas that have been upgraded to Mid-Split, no longer have Gigabit Extra 1200/35 as a option, and are moved to the Gigabit x2 2000/300. In order to receive th

user_m3v5dx

replied

4 months ago

to the conversation:

[Resolved - Partially] Gigabit x2 - Only getting 1400Mbps download / 40Mbps upload

Recently upgraded (2 months ago) from Gigabit to Gigabit x2 and my download and upload speeds have not changed! I'm using an Asus GT-AX6000 router, Motorola MB8611 modem and my entire LAN is hardwired 2.5Gbs. Running speed tests directly on the GT-AX6000 and my PCs, I am getting 1400-1450Mbps down

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MoCA Setup

I'm an Xfinity customer with the supplied Netgear router. I am not using the MoCA functionality internally as I could not get it to work. Please help me with this setup. Outside cable goes to POE filter to splitter (MoCA compatible). From the splitter I have a Motorolla MoCA adaptor setup as p

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Your Home Network

You can choose to believe me or not. I hadn't needed to post in the forums here until I bought the G36. I have no reason to make it look like the 01.05 firmware isn't working, because it ISN'T. The update made it worse. Since I don't have the resour

Jswish

replied

9 months ago

to the conversation:

Firmware update for arris G34 and G36 modem/routers

Does anyone know when Xfinity will be pushing the firmware updates for the Arris G34 and G36 modem/routers (AR01.04 to AR01.05)? Apparently, this firmware update was released to the ISPs back in November 2023 but hasn't made it to the street yet. This update was supposed to fix (hopefully) in

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Thanks again for reaching out to us @user_e0a095! Based on the issues not occurring on other modem/gateway devices, we were able to isolate the cause of the landline issues to be linked to the specific MT8733 being used. There are not any tickets ope

XfinityAldrik

commented

1 year ago

to the conversation:

Replacing the Xfinity modem with your own modem

I got tired of my Xfinity bill getting so expensive and called Xfinity Customer support to talk about it, and they suggested I can significantly reduce cost by eliminating all the equipment I was renting from Comcast. All I had to do was return the equipment and purchase my own modem and just use th

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Internet issues

Need help figuring out what all this means. Been in contact with folks from Xfinity but as usual that never gets anything indefinitely fixed. We have a Asus Rog Rapture GT-AXE11000 gaming router and a Netgear CM2000 modem. Any help would be appreciated. Thanks! DS profile assignment change. DS C

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Your Home Network

133

Update: A tech showed up and after about two hours of head scratching and trying to figure out why I was getting internet but no TV service through the stream app, he decided to disconnect my Netgear CM600 modem and connect a new Xfinity modem. Fina

FTTBay

commented

1 year ago

to the conversation:

Stream app not working

The Xfinity stream app stopped working on all of my mobile devices about a week ago. Nothing is loading and all I get are the three dots as if it is buffering. Restarted iPhones and iPad, offloaded, and finally deleted apps and reinstalled. Nothing has helped.

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[CM3000] Unable to reach 200Mbps upload speeds after mid-split upgrade

Hi, I recently upgraded to the Gigabit x2 plan, which offers 2Gbps download and 200Mbps upload speeds. I'm using a CM3000 modem but am only achieving approximately 90Mbps upload speeds. I've noticed that no OFDMA channels are locked on the modem, a common issue reported by other users. Despite seve

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Your Home Network

465

I have the exact same problem. In the past few months, I've been trying to figure out why I get intermittent packet loss. Usually it's during mid day on weekends. Comcast has checked the connection and couldn't figure it out. The current theory is ne

user_e2c89e

commented

3 years ago

to the conversation:

ICMP/Ping Packet Loss in Bridge Mode Only

This is a follow-up to this closed post: ‎Intermittent packet loss. | Xfinity Community Forum The symptom is that an external router (pfSense in my case, though obviously also Unity in the referenced post) will eventually run into problems with 100% packet loss on ICMP/Ping requests. This problem

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@user_bb801b May I ask what part of the three items below does not indicate that their "internet does not drop completely" ? "Router keeps randomly rebooting I have a Netgear C7000v2 and my internet keeps resetting on a daily basis,

commented

3 years ago

to the conversation:

Router keeps randomly rebooting

I have a Netgear C7000v2 and my internet keeps resetting on a daily basis, multiple times a day. On the router all the lights will go yellow then the router reboots and internet comes back after a few minutes, but it's very frustrating. I've tried replacing all the cables, reseating the cables, and

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super slow internt speed / modem has DS blinking light

I have the 1 Gigabit plan, and my speed was great but recently in the past couple days I notice that my speed was super slow and when I do speed test, I get as low as 6 Mbps and up to 140 Mbps through out the day. both via wifi and Ethernet connection to my PC. I also notice that my modem has the d

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Your Home Network

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WiFi keeps dropping and reconnecting every ~2 hours, “MDD Message Timeout”, “Started Unicast Maintenance Ranging”

Hello. I am currently on a 300MBPS plan with Xfinity and I have been using it with a NETGEAR C6220 for over a year now and never had any issues. Suddenly, over the past few days, I noticed that every 2 hours, the WiFi would drop off for like a minute and then automatically come back on. The timing

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Your Home Network

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I’ll grab the levels now but I have had constant issues for years. I work in tech even worked on installing for Xfinity on the business side but it’s beyond me the problems I’m running into. The power levels for my download are great but the uploads

Donkay2232

commented

2 years ago

to the conversation:

Unicast maintenance ranging no response t3 timeout

For over a year now and over 3 different modems I keep getting these errors popping up. It starts unicast maintenance ranging, gets no response, the says commanded power in excess of 6db below the value… I’ve seen the error on the forums before and kept hoping I could fix it but I’m down to having n

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... Any idea if Netgear has support ... See https://www.netgear.com/support/product/cm2000. That page links to a support forum and a contact link for support "90 days from the original date of purchase", so yeah, hit 'em up. But I suspect that most

BruceW

commented

2 years ago

to the conversation:

Why are my internet speeds constantly fluctuating on both wired and wireless connections?

I have the 1200 mbps plan from Xfinity. Until recently I was using their X7 gateway, but was having issues with internet speeds fluctuating. Sometimes I was getting 1gig, other times 200mbps. This was happening on both wired and wireless connections. I had a tech come out and he gave me new X8 gatew

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Motorola MB8611 and Firewalla Gold Router. DHCP not work on Xfinity?

I've used NetGear and LinkSys routers for seven years on ComCast Xfinity. Acquired a Firewalla Gold router/firewall to tackle a problem where I have to cycle power on everything weekly to keep Siri talking and the doorbell working. I can't figure out why your network can't accept DHCP from a sto

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Your Home Network

609

You're testing with a wired connection to a computer, so that's good. WiFi is notorious for causing performance problems, and using a wired computer eliminates a lot of variables so keep doing that. As for the speed issue, can you post your signal

zandor60657

commented

2 years ago

to the conversation:

Not meeting speed tier value

We recently upgraded our Internet speed tier from Connect to Superfast (200mbt/s > 800mb/s) and upgraded customer-owned modem from Netgear CM600 to Motorola MB8600. Checked download speed with Ookla Speedtest w/ direct modem > Desktop PC connection (Cat.7 patchcord) before and after switching

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@losmadden Printer software can be a bit touchy -- assuming your printer is even getting an IP address. If you switched from Netgear to an Xfinity gateway, you also changed the IP address and subnet the printer is on, so your computer might be lo

flatlander3

replied

2 years ago

to the conversation:

With new XFi Gateway modem/router, our Brother printer doesn't work anymore

We just got the XFi Gateway modem after using our own modems (on Comcast/ Xfinity internet) for many years (latest was a Netgear Nighthawk CAX30). We've had our Brother DCP-7056DN printer plugged into the modem's ethernet port, and it has always worked on the network (printing from laptops over wifi

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