U

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1 Message

Saturday, May 31st, 2025 3:20 AM

Download speed issues

For at least the last 2 days, and maybe longer, I can not get to 100Mbps download on my computer on my 400Mbps plan with Xfinity. This is by using a wired connection, not Wi-Fi. I am using the Xfinity Speed Test to do check this out.  Upload speed is around 35 to 40 Mbps, but download just is not good at all lately.
Back in April I was getting over 420 Mbps using speed test.  Is Xfinity Internet having issues here lately?
The Xfinity Assistance states is sees a problem, but will not tell me what it is, which is very frustrating that it will not share what it identifies it to be.  It just tells me that it can schedule an appointment to send someone out, and I may be charged for it.
Been using the same modem, nothing has changed.
HELP PLEASE!!!

Gold Problem Solver

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26.4K Messages

1 day ago

The most common cause of Internet problems is a poor connection between your modem or gateway and Comcast's network, often due to poor coax connections or damaged coax cable, usually in or near your home. Running the cable through a surge protector, a defective splitter, or too many splitters can cause signal problems as well. If there is an amplifier in the line make sure it's getting power. 

If you want to troubleshoot this yourself, please see Internet Troubleshooting Tips. If you still need help, please post the following information from your modem or gateway (from http://192.168.100.1 or http://10.0.0.1):

  • model number
  • uptime
  • downstream: power levels, SNR (or MER), and error counts for all channels
  • upstream: power levels for all channels
  • complete event log, if available (Be sure to remove or blot out any MAC addresses. Forum security processing considers them "personal information" and may prevent the event log from posting if these are present.)

Copy and pasted text is preferred over images. Be aware that, if you post any images, your message will be made Private for a time, as all images must be approved by the Forum Moderators before the messages containing them become generally visible.

If you can't find the problem or you'd rather have Comcast take care of it and an employee does not respond to your message here, call them at the phone number on your bill or 1-800-Comcast, or use one of the options on https://www.xfinity.com/support/contact-us/. It's not likely they can fix the problem remotely. If not, insist they send a tech out to identify the cause and correct it.

If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit (approx $100) unless you have their Service Protection Plan ( https://www.xfinity.com/support/articles/service-protection-plan, closed to customers that don't already have it). If the trouble is due to a faulty Comcast rental device or anything outside your home you shouldn't be charged.

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

(edited)

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