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SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing and T3 Timeouts with Dynamic Range Window Violation

Hello, I have been having intermittent cuts to the internet that last about a minute or so and decided to check the logs and it showed T3 timeouts and Dynamic Range Window Violations. Xfinity has sent 2 technicians out to my address and neither were able to find the lines from the outside. They have

Question

 • Your Home Network

18

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0

Pixelation, freezing and sound drops out.

It seems that all summer long we have had issues with our Comcast signal. We get pixelation, freezing and sound drops out. This happens frequently on most of the channels that we watch, if not all. It usually happens for several seconds and then comes back on. We have had several visits from technic

Question

 • Channels and Programming

13

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Able to log in but do nothing else

I am a new Xfinity Customer and I set up my account on Monday. I have yet to be able to do anything in my account. I can login but when I click on "account settings" or ANYTHING on my account I get a error message that says "A communication error has occurred. We have been notified and are..." or I

Question

 • Sign-In and Account Management

54

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0

Canon TS5120 Pixma not connecting to New XF Router

Canon TS5120 Pixma not connecting to New XF Router. Had my own modem/router and had no issues, but switched to Xfinity modem/router due to intermittent internet dropping, figured I would try this to see if helps. So far no working. But anyway, the printer, I go through setup on printer, try through

Question

 • Your Home Network

3

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0

Xfinity Mobile App

Downloaded the mobile app. App is compatible with my android phone. However, I am unable to sign in. I get no response when I tap the "Let's Go" button/icon. App shows lots of ads and information but won't let me sign in. The version I downloaded is 1.14.1.6 which seems to have been updated on Feb 2

Question

 • Xfinity My Account App

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Accepted Solution

Closed

Detailed billing? a/k/a Call log, call details, etc.

I'm pretty sure that this was once available on Xfinity Mobile, somewhere, but I can't find it. I need to see the detailed call logs for two of my 3 lines. I want to change up my numbers, and need to be able to notify who has called me, on each number, that they need to use a different number go

Question

 • Xfinity Mobile

9

2

0

Can’t buy 2nd Gen Pods

I have 6 first generation pods. Every time I try to buy the second Gen pods, it says they are unavailable.   I called Comcast and they said I cannot buy any second generation pods because I have six first generation pods which is the maximum. I told him I’d be happy to get rid of the first ge

Question

 • Your Home Network

11

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0

Can't get into my Xfinity account

Hello, I am a new customer and made an account on Xfinity today. However during the process, my internet cut out and I had to restart the process. In doing so, I inadvertently created 2 accounts linked to the same Xfinity Id and password. I am now not able to access my profile or pay for and star

Question

 • Sign-In and Account Management

6

1

Unlimited data $30 more per month. 28 year customer. See ya, wouldn’t wanna be ya.

Looks like as soon as you move to internet only plan Xfinity flags you as undesirable. I’ve been a customer since 1994 and they have always worked with me on pricing until now.   They offer free gateways with higher bandwidth and unlimited caps to new customers for lesser prices.  “For n

Question

 • Your Home Network

10

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0

Xfinity Stream APP & DVR recordings failing

Looking at the forum messages. This appears to be an ongoing issue. I have the latest stream app + iPhone XR any relevant updates to the fix?

Question

 • Xfinity Stream App

20

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0

Daily Outages

Hello, a few weeks ago I got a notification that Xfinity was upgrading the network in my area and that my service would be interrupted for the day. They did, and it was. Ever since then, my internet has been extremely slow and disconnects multiple times per day.  I have tried all the usual

Question

 • Your Home Network

6

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modem help

Does my CGM4140COM modem include a router? This is the modem I have. I don't remember when or who set up my system. I also have a router, installed on the underside of my desk and fully connected. Do I need this additional router? If I don't actually need it, is there a benefit to having it? Tha

Question

 • Your Home Network

27

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0

Accepted Solution

Sound dropping out on Xfinity cable and picture freezing

So following all the user issues with sound dropping out and picture freezing for a few seconds. Happens all the time now.  I replaced my older xfinity boxes (that were working well and had no issues other than I could not stream Peacock which is why I upgraded) with the newer smaller boxes an

Question

 • X1

301

5

Constant network jitter with spurts of packet loss

Hi, Over the past year I've run into issues with abnormal network jitter and packet loss. I've had Xfinity come out to take a look at the configuration and we went as far as replacing the coaxial cable from my house to the xfinity box.  It definitely reduced the frequency but never res

Question

 • Your Home Network

18

2

0

Internet only, please

Hey there. I haven't watched TV in years, yet I waste hundreds of dollars each year on TV through you. Can I please just pay for internet? Thanks  Richard  [Edited: "Personal Information"] 

Question

 • Customer Service

8

1

0

tv freezing, jumping & pixelating.

This started a few weeks ago - just once in a while. Now it is non-stop.  I have checked all connections, did several of my own reboots, had xfinity send multiple reboot pings and then yesterday my box was replaced and the tech checked all the wires around the house.  I was thrilled. 

Question

 • X1

6

0

0

Netgear Modem CM1200 - Random T3 Timeout Errors - Need Help

Hello, I have my own Netgear Modem CM1200 that I use with a Pfsense Firewall (works as my router) which then shares the Internet/Lan through a big 20 port switch and a pair of Netgear Orbi's in AP mode to supply the wireless. (CM1200 ----> Pfsense ------> Rack Switch ----> Orbi (AP mode)).

Question

 • Your Home Network

45

4

0

Youtube TV app not working on FLEX

I just got my new FLEX today, easy to setup. Now I'm trying my apps, NETFLIX works, Youtube works, Prime Videos works but Youtube TV doesn't. I clicked on the app then it looks like something happens but nothing, screen goes back to HOME, no error message, just the message "press i for information".

Question

 • Flex

704

6

Service Outage

I pay for Xfinity internet service. For a couple months Xfinity has put a temporary cable laying in the street along the curb to provide service to homes downstream from that temporary connection. That temporary connection was “repaired” yesterday, but ever since we’ve had no service. My home wi-if

Question

 • Your Home Network

30

2

0

speak to an agent

I need to speak to an agent. Virtual assistance won't let me

Question

 • Customer Service

21

1

0

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