A: Yes, now you have to go a little deeper. Try replacing the cable that connects your PC to the router. If that doesn’t help, change the cable that goes from the modem to the router. At this point, the problem may lie with your router. You should be able to plug your computer directly into the computer modem (that is the device that is plugged directly into the wall by a coax cable or telephone line), so try that next. If this still doesn’t work, contact your ISP and they can assist you in determining if you need a new modem.