I've been successfully using this modem for over 12 months. Recently (over the last ~3 weeks) the wifi signal has become unstable. Across multiple devices (android phones and pc laptops) the wifi signal will drop out. I am running both 2.4 and 5GHz signals and it seems to apply to both.   How do I trouble shoot the issue? Do wifi routers degrade? Is this a hadware issue?   Any assistance would be appreciated. ... View more