I have a new computer, new monitor and new modem. And I still have the slowest internet I've ever had. The old dial up internet I had 25 years ago worked better. And I can't find out why. Cox **.

Yes...further info.  Perhaps OP could inventory the number and condition of coaxial splitters from within the NID bolted onto the side of the house to the Internet modem.  Also, posting the signal levels from Cox would help.

If there is a coax attached to the NID, I would be surprised. The NID, or Network Interface Device, is normally associated with the Telephone connections in the home. My NID has 6 sets of twisted pairs going to the 6 telephone RJ-11 connections in my home. The coax from Cox, normally goes to an audit box on the side/back of home, and from there, there could be splitters, etc. 

My computer, modem and router are all set up the way the cox tech guy said to set them up. They don't know why my internet is so slow.

We're not questioning your setup.  However, I will question why you're not providing the information we're requesting.

Hi HLH, so that we can take a look at your current internet speeds on the Cox network, please log into www.cox.com and then run the speed test at www.cox.com/speedtest several times. Be sure to run the test using a device connected to your computer with an ethernet cord. -Becky, Cox Support Forums Moderator

They don't throttle internet unless your modem is not approved for the speed you are signed up for. You can verify your modem here - https://www.cox.com/residential/support/cox-certified-cable-modems.html. Service fees are charged only if

1. The problem is inside the home, IE, wiring/connections/cable/or your own personal modem or equipment. 

2. If #1 is true, then you can avoid a service charge by paying 9.99 a month for Cox Complete Care, which not only covers the service charge, but ALSO, provides you 24x7 tech support your computer, personal router, connecting equipment, infected computers/tablets etc. Pretty good deal if your not a systems engineer like myself. 

Okay I've been at Cox customer for a long time and you're lying you guys do throttle people's internet and you do trick them into upgrading and you do charge people to come out and do maintenance when nothing's even wrong. I have seen it and I have talked to people who work for your company who no longer do.

First, DarkATT is a subscriber to the Forum and doesn't work for Cox.  DarkATT used to work for Cox but now doesn't.

Second, why do you keep choosing your comments as the answer to an OP's problem?

Users do search the Forum for similar problems and if a post is selected as "Answered," they'll research it to solve their problem; however, your "answered" comments wouldn't solve anything.  Your comments are just complaining.  You're wasting subscribers' time and effort.

I also noticed you need to vote yourself up on all your comments.  I'm surprised you haven't mentioned yourself yet.

I have never voted myself up, in fact never really noticed the up and down arrows till you mentioned it. Also, as I look in this forum, all of my posts have a ZERO, which means they haven't been voted up or down.  Additionally, if someone else has the same problem, then the same info is needed. Yes, I used to work for Cox, and yes, I am a systems engineer, and actually, a CNE as well. If I can help someone with an issue they are having, I am all about trying to do so. I retired due to medical issues, and I can no longer sit in front of a computer for 8-10 hrs a day It doesn't mean I should throw away the positive knowledge I have to assist people having issues with a service I am intimately familiar with. 

I think you're confused to whom I was responding.