Dr. Beck testifies that Adam Makris' blood is matched to DNA taken from hair in his electric razor. Hair contains no DNA; the only way to get a sample would be from the hair follicle, which would not be attached to clippings in an electric razor.
When the traceroute program is executed, the IP shown is 392.163.1.104. While the first IP quadrant cannot be higher than 255, it's generally believed that fictional IP addresses in films and TV are approached in the same way as fictional '555' phone numbers.