Bought my Nighthawk AC1900 c7000 in December 2017 been working fine. Past couple weeks the wifi on both the 2.4 and 5ghz are running very slow below 20mb/s. We have Spectrum Cable 200mb/s, the direct connection works just fine so its just the Wireless side. Tried a Factory Reset, messed with the MTU, put on different channels even though it says it auto picks the lowest one, nothing works. Any thoughts?
