theres something wrong with tower im using so i wanted to hook up a different one but for some reason it wont let me connect to the internet i have a usb adapter one the one im useing and the other tower looks like its set up for the same thing. I have a disk i had to use to set it up for this computer so i tryed that on the other one and it told me it was already set up for it but it still wont let me connect .............. okay so theres the problem any ideas

Call your ISP and have them help you sort it out.

Your post really doesnt make much sense.
Further clarification is necessary

I had my modem connected to my network card until I got another computer and setup a network so I started using the usb cable for the modem. I had to do this before it started working.

1.Uninstall the modem from the device manager.
2.Turn off the computer.
3.Unplug the power to the modem.
4.Wait a minute then plug it back in.
5.Turn on your computer after the lights stop blinking on the modem.
6.Reinstall the modem using the cd and setup your internet connection.

I don't know if it is the same problem but it worked for me.