Xfinity 100 Mbps connection keeps dropping (intermittent) multiple times per hour

Thank you for posting. Now I know I am not crazy and not the only one with this issue. I feel like I need to state it again: I am not talking about a few drops a day, but one every 5 minutes making me impossible to work at home.

Found a couple of threads on the same topic that are quite interesting:

https://forums.xfinity.com/t5/Your-Home-Network/Intermittent-dropped-internet/td-p/3254091/page/2

https://forums.xfinity.com/t5/Your-Home-Network/Intermittent-dropped-connection-RESOLVED-SEE-BOTTOM-POST/td-p/3250550

I need to post here again, hoping to get more attention from Comcast. After an initial attempt, I got back in pm to both ComcastTruJoe and ComcastChe, but I have not heard anything back. Is there a better way to reach out asking for help? I do understand individual technicians might be out for the weekend, or other. From one of thoose threads, it seems like I may want to reach out to Comcast_Support instead - is this a better practice?

I also have talked to the customer service on the chat Friday morning. I was told that my issue was escalated and that someone would get in touch with me in 24h, it never happened.

I then talked to one of my two neighbors (we live in a three family building). Surprise: he experiences the same issue. I have learnt that independently from what I am doing here, he also got a technician to check the building ~two weeks ago. Nothing was found. Te technician said he was going to put a ticket in, and that in a few days someone from Comcast would have called and come to check the connection getting to our building and surrounding ones. Well, this never happened, too.

At this point, it is probably futile for me to post here some more modem logs, but I can report 10s thousands uncorrectable for the modem download channels 1-16, and t3/t4 every other minutes.

As I said, I am posting again, as I am hoping to get attention from Comcast and get some more dedicated resources to fix my internet connectivity, trying to get an internet connection I can actually use. Thanks 

I don't know if it will help, but guess what, I'm going to re-escalate this for the second time.

I'm experiencing the same exact issues. I've had countless techs here and they've replaced literally everything...I started with my own modem/router setup and they blamed that so I switched to renting their equipment, but to no avail. I was also told by one helpful tech that there was an upstream issue with one of the nodes up the road from me, but nothing was ever done. It's honestly unbearable, but there are no other ISPs in our area. If you figure anything out, please share!

yes - will do! They made me replace modem AND router, as well. A waste of my $$ and of my own time. ComcastChe later mentioned 'upstream issues', but have not heard anything from anyone in days, now. I will keep you posted here. Hope that discussing publicly can help other people with the same issue.

We're sorry for our delay in getting back with you, John_H3. We want to help get your issues resolved as soon as we can. I have responded to your recent Private Messages. Thanks for your understanding. 

An update for other people reading this thread, who may have interest.

The problem is not solved. A Xfinity technician came here ~3 weeks ago, checked all cables and connection, but has not find any issue or solved the problem either.

The Xfinity customers support is telling me that they will need to send out someone else to check connections again, however due to covid this is not possible at this time. I have been unable to use my internet connection for more than 12 weeks now.

basically if you have a gig plan and dont use a xfinity supplied modem/router they throttle and crush your speeds. its fixed by firmware update only and they refuse to do it. this has been ongoing for almost a year. xfinity just says the issue is something else and will keep sending you techs. these posts pop up evryday. 

All right - some new info about my issue I hope people reading this post may find of interest

my internet connection is still unusable - talked to the customer service for the ~10th time

I have been redirected to what Comcast calls the 'Advance Repair Team', this is what they said and done: 'I am done with the check and the system identified the modem is online however, it also detected signal issue that is causing the intermittent connection. I am going to complete update and refresh here in our backend for the service and I will be sending a push signal to the modem. I have did a refresh on the bootfile from the backend and corrected the signal issue. If in case the issue persist, we will set up a technician visit for you.'

p.s., not totally sure what this means exactly - if someone can explain, it would be appreciated.

In any event, unfortunately, the issue did not go away. So they have scheduled a third technician to come visit my building tomorrow. Let's see if this solves my internet connection, which I have not been able to use since ~April

Thanks for posting that info. Glad that it finally got straightened out ! Hope things hold up for you ! Good luck ! Now closing this thread.