Comcast Users Facing Connectivity Problems – What Should You Do?
Comcast Users Facing Connectivity Problems – What Should You Do?
Are there any Comcast Internet customers experiencing daily outages? I've faced frequent interruptions with my connection over the past months, sometimes losing it completely each day. Checking the support forums reveals many others sharing my experience with signal mismatches. My modem's performance seems inconsistent. I've tried all standard troubleshooting methods and even changed the DNS settings, but the issue persists. I reached out to the forum in June for assistance and received no reply. Recently, a tech was scheduled via email for this Friday, as instructed by Comcast. They mentioned needing a technician to recalibrate my signal levels. I use my own cable modem (TP-Link TC7650) connected via Ethernet Cat 6a, subscribed to the Blast tier. My speed tests are consistently strong when the connection is stable. I have several questions for you: 1. Are others facing similar problems? 2. If you resolved the issue and had help, what steps did you or Comcast take? 3. Do you own your modem or do you have it leased from Comcast? 4. Was there any charge for the technician visit? I'd appreciate hearing your thoughts.
I understand DOCSIS Cable Internet isn't available at my location, but I can share what I know about how it functions. If many users connected through the same node or head end face similar problems, it's likely due to an outage, ongoing upgrades, or a contractor working without proper checks—possibly motivated by financial gain rather than long-term service. We haven't encountered specific RF issues at our home since our ISP rewired all the coax cabling in January 2017. However, contacts with the cable provider have asked technicians to verify RF levels entering the modem to ensure they meet standards (typically -10 to +10 dB for reception and +35 to +50 dB for transmission).
Our cable modems are mostly rented, which happens about 85% of the time in Canada. This is because you usually can't buy your own modem unless you use a provider that resells access to major internet companies. Most rental modems come with free installation as long as you stay on the service plan, depending on your package.
In most cases, tech support visits are free, especially in Canada where ISPs are responsible for signal quality up to the DMARC point before any loss. They often try to maintain good signal levels for their equipment since it helps keep customers paying.
If you find yourself without service, consider moving, advocating for better regulations, or switching providers. If changing isn't possible, you might just have to accept the situation.
This discussion focuses on how your connection reaches the modem via coax. If you lose the link, it could be due to WiFi broadcasts from the modem or Ethernet issues, which usually aren’t Comcast’s fault—modem/router units often lack strong wireless capabilities and may have poor admin interfaces.
I hope this clarifies things a bit. I didn’t mean to come across as rude, but I wanted to highlight the challenges of ISP selection in certain regions, especially outside major cities in North America.
Thanks for the kind response. I actually had five questions but ended up with four. I missed updating the count from five to four. No need to worry, I wasn’t being rude. Your feedback is appreciated. I hope more people join the discussion. Thanks!
You can observe how your modem's lights behave during internet outages. In Canada, my ISP uses four lights to show status: power, downstream (receiving), upstream (sending), and full connectivity. If you notice changes, compare them to their normal operation so support can assist more effectively.
Yes, I pay attention to those LED lights on the modem, and they blink during a connection loss. My modem has been looking like a disco ball lately! Got a tech coming out tomorrow, Hoping to get the very annoying issue fixed.