R

Visitor

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8 Messages

Thursday, January 5th, 2023 6:12 PM

Closed

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 that is hardwired will disconnect and my TV, Alexa devices and cell phone disconnect too). For the last month I've been tracking what time the internet disconnects and there is no trend, but it happens 1 or 2 times a day. Usually it disconnects for about 1-5 minutes and then is back up. I work from home, so even a couple minutes offline is incredibly frustrating as I'm usually in meetings, presenting, and on camera. It disconnects randomly at 3:23pm or at 9:26am or at 5:00pm. 

I've had several technicians come to my home just to tell me the wires and everything looks "good". I was even charged $100 for my last visit on 12/4/22 even though the issue is still happening! One of the techs suggested I purchase a new modem/router because my Motorola was getting old. October of this year I bought the Netgear Nighthawk and I'm still having the same issue - which makes me believe it's not the modem/router and I spent another couple hundred dollars for nothing. I've contacted Netgear, they've run tests and also say it's not the new modem, it's the connection, but no one can figure it out.

I've chatted and called Xfinity so many times with no resolution. They have tried to reconfigure settings and send signals. I try to call as soon as my internet cuts out, but by the time I have someone on the phone, it's working again and they can't see the issue. 

Has anyone else experienced this? Any suggestions? Please help!

Expert

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110K Messages

2 years ago

Visitor

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8 Messages

@EG​ 
Thank you. I've looked through all of these options and the one item that stands out for me is the T3 timeouts in the logs. I have several from each day this week. The rest of my comments are below:

  • There are no service interruptions on the Status Center when my internet cuts out (every day).
  • I did not make any changes to my service as my 1 year promotion was from November21 to November22 and the issue started around August. There were enhancements being made on 9/14 in my area and I feel that made it worse for me.
  • All of my operating systems meet the requirements and my modem is compatible. My modem/router (Netgear C7000v2) is placed in a central place and not behind any obstructions. It's actually about 1 foot away from my laptop (HP ZBook Firefly with Windows 10 Enterprise) which is hard-wired through an ethernet cord and still my internet cuts out 1-2 times a day.
  • The issues happen on both Wifi and Ethernet
  • I've powercycled and hard reset my device while on the phone with Xfinity and Netgear a few times and the issue is persisting.
  • The lights on the front of my modem/router are solid when the internet cuts out. They do not blink like they used to on my Motorola which would at least notify me that the internet cut out.
  • My cables and connectors are fine and I've had several people look (no bends/kinks/cuts/properly tightened) and the last technician removed the splitter to see if that would help. I've also replaced the ethernet cable a couple times.
  •  I don't quite understand pings and traceroutes, but something I will look into further.

Frequent Visitor

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16 Messages

I continue to loose internet connectivity on the weekends (the last 4 weekends) I loose connection every 2 or 3 hours & am really becoming upset!  Fix your issues!  I lost internet on Christmas, Christmas Eve, New Years, New Year’s Eve and this weekend, twice yesterday, FIVE times already today!   I am VERY upset.   Fix your servers!  What happened to the forum????  Every time I try to go there I receive 1 “400 Bad Request “. MY son lives 4 miles from me and has FIREFLY and never has any problems with his connection.  I CAN NOT wait to dump all my services with Comcast because there are so many problems.

Frequent Visitor

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16 Messages

I continue to loose internet connectivity on the weekends (the last 4 weekends) I loose connection every 2 or 3 hours & am really becoming upset!  Fix your issues!  I lost internet on Christmas, Christmas Eve, New Years, New Year’s Eve and this weekend, twice yesterday, FIVE times already today!   I am VERY upset.   Fix your servers!  What happened to the forum????  Every time I try to go there I receive 1 “400 Bad Request “. MY son lives 4 miles from me and has FIREFLY and never has any problems with his connection.  I CAN NOT wait to dump all my services with Comcast because there are so many problems.

Visitor

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8 Messages

@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 then his internet disconnects every day now too!! He called and they told him it's his modem, but he has a relatively new nighthawk netgear modem/router and it was working just fine for months. Knowing my own issues, I told him it's probably NOT the modem and likely the enhancements because that seems to be what 'changed' for me before my internet decided to disconnect every day. 

Official Employee

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1.7K Messages

@stevix55 Good afternoon! Thank you for reaching out to our Community Forums Team for assistance with your internet connection. I can see how having an intermittent connection would be frustrating. I would be delighted to take a closer look into your services, and get you on a path of resolution. To begin, can you please DM your name and the service address we will be working with today? 

 

 

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Contributor

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72 Messages

2 years ago

What model of Netgear Nighthawk do you have? Can you copy your event logs here? (Make sure to edit out any MAC addresses or other PII, first.)

Visitor

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8 Messages

@NoGoodNamesLeft4Me

I have a C7000v2. I was just on the phone with Netgear and they asked me to change the channel for my 2.4Ghz to 11 so you'll see that but otherwise I have a lot of T3 time outs. Last week 12/30 is when I was on the phone with both Xfinity and Netgear and they had me do some restarts. In the last week these are the dates and times that the internet cut out as well:

  • 12/30 - 11:58am
  • No data between because I was not home for the New Year
  • 1/3 - 12:03pm
  • 1/3 - 5:00pm
  • 1/4 - 10:33am
  • 1/4 - 11:12am

Time Priority Description
1970-1-1, 00:00:48 Notice (6) Honoring MDD; IP provisioning mode = IPv6
1970-1-1, 00:00:42 Notice (6) WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:42 Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:39 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=;
2023-1-5, 07:29:30 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;
2023-1-4, 17:38:11 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;
2023-1-4, 10:05:18 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;
2023-1-3, 15:36:15 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;
2023-1-3, 08:44:16 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;
2023-1-3, 07:41:25 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
2023-1-3, 04:00:22 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
2023-1-3, 01:10:16 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
2023-1-3, 00:53:53 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
2023-1-2, 20:50:08 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
2023-1-1, 16:22:21 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
2023-1-1, 10:17:16 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
1970-1-1, 00:00:37 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c0;
2022-12-31, 00:00:38 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=c;
1970-1-1, 00:00:39 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c;
2022-12-30, 12:48:50 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=c8;
2022-12-30, 12:48:43 Critical (3) No UCDs Received - Timeout;;CM-MAC=c8;
2022-12-30, 12:48:25 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c8;
2022-12-30, 12:48:23 Critical (3) No UCDs Received - Timeout;;CM-MAC=c;
2022-12-30, 12:48:05 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c;
2022-12-30, 12:48:03 Critical (3) No UCDs Received - Timeout;;CM-MAC==;
1970-1-1, 00:01:25 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=c8;
1970-1-1, 00:01:19 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c;
1970-1-1, 00:01:07 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c-VER=3.0;
1970-1-1, 00:01:06 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c-VER=3.0;
1970-1-1, 00:01:02 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC ;
1970-1-1, 00:01:00 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=;
1970-1-1, 00:00:42 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c-VER=3.0;
1970-1-1, 00:10:32 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c-VER=3.0;
1970-1-1, 00:10:31 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c.0;
1970-1-1, 00:10:30 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c;
1970-1-1, 00:10:29 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c0;
1970-1-1, 00:10:29 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=VER=3.0;
1970-1-1, 00:10:27 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=;
1970-1-1, 00:10:25 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=c.0;
1970-1-1, 00:10:24 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=c

(edited)

Official Employee

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1.6K Messages

@Regina771 - Thank you for all the data you've shared. We appreciate your efforts to resolve this in whatever way you can. If you are still experiencing an intermittent connection, I'd love to see what else we can try on our end. Please send our team a private message to get started.

 

To send a direct message:

  • Ensure you are first signed in, then you will see a chat box icon at the top right of your page. Click that or follow this link here: https://forums.xfinity.com/direct-messaging
  • From there, click the 'New Message' icon. In the 'To' field, type 'Xfinity Support'.
  • Type your message in the text area that appears at the bottom of the window and hit enter to send. An official employee, such as myself or whoever is first available, will respond.

To expedite your request, we ask that you please include your name and the service address alongside a detailed summary of your request/question. Thank you!

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Visitor

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8 Messages

@XfinitySara​ 

Hello,

Sorry for the delay, I've had a concussion the last week, but yes the issue still continues to happen every day! I will definitely send a message soon.

Thanks,

Regina

Frequent Visitor

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16 Messages

2 years ago

I continue to loose internet connectivity on the weekends (the last 4 weekends) I loose connection every 2 or 3 hours & am really becoming upset!  Fix your issues!  I lost internet on Christmas, Christmas Eve, New Years, New Year’s Eve and this weekend, twice yesterday, FIVE times already today!   I am VERY upset.   Fix your servers!  What happened to the forum????  Every time I try to go there I receive 1 “400 Bad Request “. MY son lives 4 miles from me and has FIREFLY and never has any problems with his connection.  I CAN NOT wait to dump all my services with Comcast because there are so many problems.

Visitor

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2 Messages

2 years ago

You guys are not alone. We have had the same issues for the last couple of years. I am sure there are many others having the same issue. It's never fixed, and I agree with Stevix55, we are ready to dump Comcast. 

Visitor

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8 Messages

@user_d0c3bd​ Oh my gosh, a couple of YEARS?! I'm sorry to hear that too! I hope mine doesn't last that long, but.... I'm starting to believe it will and will also have to jump to a different provider. 

Visitor

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2 Messages

@Regina771​ we have tested 5G-Home by T provider for a few weeks now, and the connection has been super smooth with only half the price, so we are happy now.

Visitor

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1 Message

2 years ago

I have the same issue after I replaced the modern to xFi Gateway that Xfinity rent to me, the the intermittent disconnection started to happen.  I can't talk to Comcast's tech. supporting person.  The on line chat only run the test, and telling me everything are fine, in the meantime the connection came back.  But it will be dropped again, and it normally take a few minutes to come back.  

Visitor

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8 Messages

@user_941b5b​ Yes, the same with my issue! I call and they see that the speed is high, the modem is working and everything is fine, but in a few hours it will drop for a couple minutes. I hope we can all find a fix for this!

Visitor

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1 Message

2 years ago

I have had the same issues and filed a complaint with the Better Business Bureau [Edited: "Solicitation"]

(edited)

Official Employee

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1.8K Messages

Hey @user_e43f1a,

 

Thank you very much for visiting our Xfinity Community Forums. We would be more than happy to assist. Would you be able to provide detail pertaining to your specific experience with the Xfinity Internet so we can best assist?  What troubleshooting steps have you also tried? 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Visitor

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6 Messages

2 years ago

I am having the same issue I had last spring, it lasted until September last year. A few times a day the internet connection drops, but I do not lose connection. This happens for about 30mins to an hour. Last year a line guy came around June or July and the internet worked perfect for a week and then went back. Please help! I need this fixed. People work at home here. I don't want to pay for more techs to come over and not fix anything. I am almost positive the problem is in the lines or a neighbor is surging something.

Official Employee

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232 Messages

Hello @user_dab739. We would be happy to help with your service issues. 

Could you please send our team a direct message with your full name and full address?
To send a "Direct Message" to Xfinity Support:
Click "Sign In" if necessary
Click the "Direct Messaging" icon
Click the "New message" (pencil and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there
 - As you are typing a drop-down list appears. Select "Xfinity Support" from that list
 - An "Xfinity Support" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it

I no longer work for Comcast.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick
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