I have windows 7 64 bit ultimate. My internet i connect thru a modem and no router. i have a separate router i use just for home network and it has no internet,, just used for communicating to other computers. when i connect my router to the computer i lose my internet connection,, it still shows it in icon as connected but win 7 is getting confused somehow,, it seems it changes what it is using for the internet cause it sees the router at 1 gigabit connection and the modem connection is 100mbs. am guessing i have to change some protocol or some ip4 or 6 settings,, i know a little about these things but dont know waht to do to make sure it uses the right connection for the internet. i dont want to enable ics and bridge connections as i want to keep this router totally closed to internet. ANy help would be greatly appreciated.