MyQ Chamberlain garage door opener stopped working after 3 years. I have bought 3 new gateways all haven't worked. Replaced modem and router. Reset to factory settings still no luck. Green status light never goes solid green on all 3 gateways. LAN cables test good with other network devices. Gateway is receiving IP from router and is responding to pings too. Tried neighbors router with different internet service provider to see if lights go solid green, nope.