hey jakop

Since the tweak worked for you at first and then after a while you get bad speed, its not the tweaks that cause the problems
the problem is most likely in your ISP net.
tweaks dosent change, unless you change em yourself, quality of net do change unfortunely

If you now decided to use windows default values and want to get rid of the tweaks
install cablenut again, open adjuster click delete cablenut tweaks + save to registry and reboot
if you still want to try tweaks again i suggest you use this guide
http://testmy.net/forum/index.php?topic=1013.0use my custom settings from MSS 1452 folder
good luck
VanBuren
