Speed problems : SOLVED ! More than likely Windows 10 default settings here's a tip that works

1st off - I'm a 16+ year Cox customer  and thought I'd share a success to my speed problems -

I've been watching my speeds for several months -  I'm a windows 10 preview participant and notice  after every install my internet speeds were being  "nerfed or  adjusted according to windows defaults .  After countless tweaks , router resets and hours upon hours on the phone with Cox Customer service I discover this page. https://redacted.tv/2017/12/20/win10guide/ This guide I followed to the letter and wow this  fix my speed problems I hope it will help you. 

I'm on Fiber and  upon 1st install I was get 920 up and 930 down  I have over 50 results  over a period of 4 months and recently varying from 300 down/500 up to 600 Download/689 up   after doing  all the tweaks on the link  I'm  getting http://www.speedtest.net/my-result/d/e8a29822-6b35-418c-b7df-0ac7a8702703 better than when I first got Giga-blast.

WARNING :  some of these settings are "REGEDIT" registry  tweaks. If your not familiar or comfortable just Find someone who is or use the http://www.speedguide.net/files/TCPOptimizer.exe and  use the setting post on the web page …

You'll be happy you did   http://www.speedtest.net/my-result/d/fc478f04-884e-4856-890d-e429aafcb9b6