I installed a new HP printer today because my old one (also HP) was chomping up my paper when printing. Copied ok. I followed the instructins and (as directed) put the usb cord on last and plugged into back of my computer. There are 4 usb ports on the back of my computer and one was in use so I used an ajacent one. Could not connect to the internet. Went thru whole process again but plugged it into a port below the one I used previously. Instant internet connection. Is there a difference in the ports? I"m guessing so but don't know why.