Slow speed, unstable connection, billions of uncorrected packets

The stats posted indicate excessive noise in several of the downstream channels. You'll probably need to have a Comcast premise tech fix this, but maybe Internet Troubleshooting Tips will help you. If not, 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 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.

@BSRussell

Good afternoon! Thank you for reaching out to us and providing these logs along with bringing attention to the connection concerns you have had. There was some great advice given here already and I hope that has helped. We just want to let you know we are here to help support you and provide you with solutions as well.

To save you a phone call, please feel free to send us a direct message to have us check the signals on our end and plan to have this corrected 😊.

Here's the detailed steps to Direct Message us:
• Click "Sign In" if necessary
• Click the "Direct Message" icon (upper right corner of this page)
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
• Type your message in the text area near the bottom of the window
• Press Enter to send your message