If you're using your TV's USB port to power it, don't do that. Use the supplied power adapter and leave it powered on at all times. If your router is using "Auto" for its channel, pick a fixed channel and stick with it. Note that 5GHz DFS channels won't work and, if you're not in the US, stick with 2.4GHz channels 1 to 11. I've found that Rokus work best if everything is static - use a DHCP reservation in your router and don't use "Auto" for your Wi-Fi channel which can change the channel at any time.
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