I've left my router / switch combo on 24/7/365 for the past 3 years or so. Nowadays the router causes lag anywhere from 10ms (normal) to 1000ms. This can sometimes be temporarily (as in fixed for 5 minutes) if I reset the router before the ping fluctuates anywhere from 10 - 600ms again. Should I just blindly update the firmware and pray this works? Or what else could be causing the problem?