All 4 sticks worked last night. All TVs were off and we had a short power outage. Hours later tried to use Roku. Home screen says not connected. (wifi is working) tried to use remote to reconnect and it won't do anything. changed batteries. etc. unplugged to reboot. nothing. the same for all 4 Roku sticks.
Now I can't even power the TV on & off with Roku remote. The Roku's are not that old. Please help!
Try restarting all of your network equipment again (gateway/modem/router) and then wait a few minutes and restart one of the sticks from Settings->System or Settings->System->Power.
I am also experiencing this. A restart does not work. I have to physically unplug the USB from the Roku stick and plug it back in. I suspect they are using a low quality power supply.