21 Messages

Saturday, November 22nd, 2025 6:37 PM

Ongoing speed issues

I spoke with Xfinity support at least twice earlier this week and had a ticket opened to have a tech come out. At the time, I was under the impression the tech will check the neighborhood node but I kept on getting SMS messages about the appointment and subsequently it sent a message saying that "Through routine monitoring of the health of your network, everything looks good. If your issue is resolved, you can reply X to cancel your appointment" which I did because how is supposed the tech help with my home infrastructure?

I am really sick of support going by scripted questions and responses. The support has pushed for Xfinity modem however I will not even consider it (wouldn't even touch with a ten-foot pole). My infrastructure is as follows:

- Enterprise grade switch

- Enterprise grade router

- Enterprise grade Wi-Fi access point

The support kept on asking how many devices I have in my house that are connected to the internet. How is that supposed to help? I mean I do have some IoT devices but they all consume small bandwidth if any at all. Earlier in the year (in springtime) I complained and had a tech come out here and he admitted that the issue is really with the neighborhood infrastructure and nothing he can do about it. Eventually, I got a notice that infrastructure was being upgraded. As a result, I asked for higher speed tier (1,100 down / 300 up). For a time, I was getting constant speeds so I stopped checking but in the fall I noticed streaming service at times glitchy video streaming and / or buffering. I decided to start checking speed test at interval and noticed my speed is inconsistent throughout the day. At times I get over 1200, other times especially in the evenings I get half of that or even worse. Last night I was getting around 17mbps download and I had a specific device that needs to be updated (firmware) and it took at least half hour when it normally would take a few minutes due to extremely slow download. Please note that whenever I do speed test, it is done on my desktop that is connected via wire at 10,000mbps and the switch is connected to the router at 10,000mbps. The modem is connected to the router and its port is rated at 2,500mbps so we can rule out issues with my home network infrastructure.

Since I was "forced" to do a contract with Xfinity when I upgraded the speed tier (1,100 / 300) and I see that I'm not getting what I pay for so that is a breach of contract. I am once again documenting speed test results and have already asked for partial credit for this month. The support indicated the node may be the culprit due to too many devices connected to the internet and I told how is that supposed to be my problem? Xfinity needs to deliver what it promised and while I do understand during peak times I may not get full 1,100 download but getting around 300-700mbps and in certain cases below 100mbps is simply unacceptable and I consider it to be a breach of contract.

Now I am waiting to see if Xfinity support will see this message and ask me to contact them. Phone calls with support seem to go nowhere and the person on the other end kept on asking stupid questions. I'm in IT, I know network and such; they cannot point to my network infrastructure especially if my network runs at 10,000mbps whenever given device is capable of. I will keep asking for partial credit every month until Xfinity figures out the issue and I think I will have to start looking at other providers because it takes MY time to reach out to Xfinity support via telephone and such. It's becoming tiresome. If there is a better provider, I will make the switch and will not be responsible for ETF given the speed issue and on Xfinity's part for failure to provide expected speeds (again I point to breach of contract).

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Expert

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114.7K Messages

10 days ago

This doesn't help, and it's something that you may not want to hear. They have an out. It's technically and legally not a "breach of contract" as they do not guarantee speeds. And they advertise their speeds as being *up to*. See their network management article below for details;

https://www.xfinity.com/networkmanagement 

21 Messages

I am well aware of the "up to" clause but realistically getting half or less speed is not acceptable period. In fact I recorded 17mbps last night and it took over half hour to download new firmware to update a specific device when it normally takes a minute. If I get 700-900mbps during peak times and over 1100 during non-peak times I would be okay with that. If there is another provider available, I am going to make the switch because those folks at Xfinity clearly do not know what they are doing given the inability to provide decent speeds at all times. That is how I see it.

Expert

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114.7K Messages

10 days ago

I feel your pain and I wholeheartedly agree with you ! You said "breach of contract" a few times, which it's not. I can understand that's "how you feel"! And you have that right ! Please don't shoot the messenger..

21 Messages

Well, it depends on how one views it. I do believe it's a breach of contract. The link you provided earlier in this thread, it stated FCC did perform speed tests so that gave me an idea, I can file a complaint with FCC because Comcast failed to provide consistent and sustain speeds at any given time. Getting 100mbps or under during the peak times is unreasonable. Interesting that Xfinity support hasn't responded to this. I suppose it's weekend but I will see.

Expert

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114.7K Messages

10 days ago

No it don't or it isn't.. Try and fight in court. Best of luck...

Official Employee

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812 Messages

8 days ago

Good afternoon user_4a1oy2. I would be more than happy to take a look at your account, and to assist further. I will need some additional information. 

Please send us a direct chat message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forums page.

 

To send a "Direct Message" to Xfinity Support:

 

Click "Sign In" if necessary

Click the "Direct Messaging" icon or  https://forums.xfinity.com/direct-messaging

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 and press Enter to send it.

 

21 Messages

3 days ago

Update on this - I reached out to Xfinity support online and a tech was scheduled to come here which was yesterday morning. Prior to tech's visit, I ran speed test and I was getting around 600-700mpbs download. Tech looked at the modem and disconnected the cable and connected to his equipment for testing. He indicated he was getting over 1000mbps. I told him the speed always fluctuate even during non-peak hours so he wanted to check the enclosure on the side of the house. He immediately said it is very old (I think it is referred as eMTA enclosure) and he removed two cables (one coming from ground and another going into the house) and installed weather-resistant coupler and connected two cables via the new coupler. I then ran speed tests several times I was consistently getting at least 1300 down and 340 up which is far better than what I was seeing past few months. I thought the issue was resolved but I decided to run speed test throughout the day after tech left. The download speed was fairly good - it was between 1100 and 1200 in the afternoon. I had forgotten to run another test until 7PM, I got around 800mbps down (upload was still good); at 8:30PM I got 549mbps down and upload did not hit 300 but was in high 200's. This is an indicative of network congestion at the node. Next morning I ran speed test I was getting over 1300mbps and over 300mbps. I will reach out to Xfinity Support again.

21 Messages

@XfinityJon I have been going back and forth with Xfinity support online and the individual is starting to make me angry. I explained the speed test results and ran a couple tests today. All morning I was getting over 1100 / 300 but after 12PM it went down to 366mbps down but subsequently went up to 700-900mbps while upload stays around 300 but started to hit high 200 e.g. 294mbps. The individual with support wants to send a tech to my house. Well, I already had a tech here yesterday morning a little past 7AM and at the time it was not during peak hour and after he installed weather-resistant coupler it did make a difference I got consistent down and up speeds but the speeds dropped significantly at night (ran tests twice one after 7PM and another at 8:30PM). This morning it went up to over 1300 / over 300. It was fairly consistent until after 12PM. How will tech help if he were to come here again? He needs to be sent to check the node (neighborhood infrastructure) since it's obviously at capacity.

And, yes, each and every time I RUN a test, I make sure none of the devices in my house consume bandwidth such as streaming, video calls, downloading large files, etc. And once again, I have to state this MANY TIMES, my computer which I run speed tests on is connected via wire at 10,000mbps; switch to firewall at 10,000mbps; and firewall to modem at 2,500mbps. That rules any possible bottlenecks within my network!

The individual with support insists on having maintenance ticket which requires a tech coming to my house. I am amazed how much IQ has been dropped around here.

21 Messages

Tech will come here Monday between 4-6PM. Sigh and apparently tech will come to my house. I will just send him over to node to look at it since I've ruled out any possible network bottlenecks within my home network infrastructure. Side note - tech who was here the other day asked for my Wi-Fi SSID so he can run speed test on his smartphone. I made a face since wireless is always subjected to interference (running microwave will either reduce bandwidth or at times cause lose connection between client and access point). One needs to run speed test via wired device e.g. computer. I am tired of this.

21 Messages

2 days ago

Yesterday I decided to post speed test results almost every hour to Xfinity support to illustrate the drop.

- Had to emphasize each and every test performed, I made sure no devices were doing any activities that would affect the test e.g. streaming, downloading large files, video calls, etc.

- Had to emphasize the test performed on the device, that device is connected via wire and minimum speed is 2500mbps which is between the firewall and modem.

After 12PM download dropped to around 700-800 for download. At least once it did hit 1000. In the evening, it went down to ~700mbps download. Upload was at high 200's. A little past 8PM, it dropped to high 500mbps / high 100. Lowest speed for download was recorded at 366mbps. Recently, I ran a test I got over 1300mbps for download and over 300 for upload. That tells me the issue is on their end (as always) and at this point I will have zero sympathy for the tech when he comes here tomorrow. I will expect him to address the issue with the node (which I know he will not) and at which point I will file a complaint with FCC since this has been a recurring issue and Xfinity support always dance around the issue - pointing to my wireless, saying my device may be old, too many devices within the household consuming a lot of bandwidth, and so on when I already knew the answer to the problem. In my view, IT IS NOT MY PROBLEM if Xfinity cannot support sustained speeds during peak times. I am a paying customer and as such I expect decent speeds at any given time. Yes, I know Xfinity came up with a clause, up to, and the article regarding broadband performance it states FCC did the tests during non-peak and peak times and that the performance was consistent. That is contrary to my experience and that has been an on-going for a number of years. FCC needs to make Comcast revise that article because obviously it is not true or FCC needs to get involved more and perform ad-hoc tests at any given time at any location.

(edited)

21 Messages

22 hours ago

Another update - I kept on sending speed test results every hour or so to Xfinity support just to prove my point. Tech came here earlier afternoon and I showed the speed test result. The tech looked at the modem, performed tests and such and said it might be true that the node is at capacity but would need to make a call. Tech came back after making the phone call and confirmed what I already knew. I had a tech come out here earlier this year (in springtime) and was told that node is at capacity and Comcast is aware of it. The issue went on long before that tech came here. Anyway, the tech told me they plan to update the node in January but it's not guaranteed to happen, in other words, tentatively scheduled for January. Furthermore, after update they may not flip the switch immediately. I told tech it is not my problem, I am a paying customer and expect to get decent speed at any given time, not 1/4 of the speed tier I pay for and it's not necessarily 1/4 of the speed, oftentimes it is worse than that. Tech seemed surprised that I mentioned running speed test via Xfinity consistently showed much worse results compared to Ookla speed test and I was being nice I used Ookla speed test results instead.

It is unfathomable that Comcast would make me sign a contract for better pricing yet they knew they cannot deliver at least half of the time. So, my obvious next step is to file a complaint with FCC. It has gone long enough. I have no ill towards the techs who visited here, they were courteous and transparent; and apologized a few times about the issue and understand my frustration. It is the upper management who is at fault. They are disgusting human beings.

I will update here in January or so. I am not optimistic about January timeframe where they are supposedly to perform updates to the node.

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