Intermittent internet service for the past three years!!!

[BigslickT]

I am extremely frustrated and upset with my xfinity service, and lack of knowledge regarding my problem.  We constantly have internet dropping issues and intermitten levels of upload/download speeds.  

During the first two years of service we complained and complained, comcast swapped out modem after modem to find no fix.   They even upgraded us to 500 mbps.  The problem continued.

Then we decided to buy our own equipment, and bought on the higher end.  Netgear CM1000 modem and Netgear Nighthawk router.  Still same issues.  Streaming shows droppped, devices dropping off the wifi, and speed tests illistrating speeds drastically goin up and down.

Then about three or four months ago a tech told us the interior cable was bad.  We called up our electrician and had the cable swapped out.  Seemed to do ok for a week or so, then back to the same problem.  We just had a neighbor move in across the street and had xfinity hooked up...seemed to get even worse after that.

I am really disastified with my service that I am paying for, and more over as I dig into this problem and try researching, I see xfinity customers all over having this issue.  What is up with that???  What is the fix???

[BigslickT]

Our cable comes into the house, and in my daughter's upstairs bedroom splits off to go to the rest of the house.  Attached is a pic of the split.  Typically, they wouldn't split it anywhere else in the house, would they (2017 built).  

[BigslickT]

Who did you go with? and is the service realiable?  

[Josh9272]

Same. 5 times a day. New service...

[betty46]

I am literally having the exact same issue. It's super frustrating to pay huge amounts of money for gigabit service that goes up and down several times a day. It's been like this since 2017. My son has Verizon FiOS service and it has never gone down once he says since he got it in 2016. I would switch if I could but I live in a town that has only one option (COMCAST).

COMCAST PLEASE PAY ATTENTION. YOUR SERVICE IS NOT RELIABLE. YOUR CUSTOMERS ARE FRUSTRATED.

[BigslickT]

So comcast came out yesterday, inspected everything outside, and replaced some fittings inside the house.  We looked at modem and router connections and things are wierd with my router.

Modem: Netgear CM1000

Router: Netgear Nighthawk R700P

While selecting Smart Connect (allowing 2.4 & 5 singles mix) and on "auto" channel select, all my devices are on 2.4...the router would not put any device on the 5g.  I changed the channel from "auto" to "6" and some devices would go to 5g, but I still am not getting anywhere near the 500 mpbs that I should and some devices (like playstation 4) can't connect.  The unfortunate thing is this router has so many options that I think it is confusing the issue.  I can seperate the channels (2.4 & 5) and control what device connects to each, but that doesn't help with maximizing the signal use.  HELP, how do I maximize my router settings for this particular router to get the best signal.

[BigslickT]

Some what of a solution:

After years of juggling comcast equipment, buying our own, having the internal cable replace, I was doing some research to find that the firmware in the Netgear Nighthawk router has been bad for over a year.  When contacted, netgear was not acknowleding the issue.  So, dropping more money I purchased a linksys with mesh technonolgy.  Thus far (3 days) internet has been stable and no equipment dropping issues.  However, I am still not receiving the speeds I am paying for...but it is better than what I was dealing with.