Hi Welcome to Testmy.net forum. Go to the home page scroll down to other resources-click on Tweak Guide/tweak setting- Scroll down to you see CableNut 408.zip,click on it ,downloads & install it. Come back to tweak guide/tweak setting page and download one of VanBurens cable setting -downloads it Than click on it and find the setting closest to your 6000 plan you have and install it or you can scroll to the bottom of the tweak guide/tweak setting page and use the Calculator for XP/2K fill out the form click on computer setting,than click on css file download & install it Reboot than check your speed again.