Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
Re: Roku not connecting to the wifi and the wifi router is in the same room
Per this chart all Roku Express+ models (3710, 3910, 3931) have single band wifi receivers. This means they work with wifi in the 2.4 GHz band only. If your router is a multi-band model that does not have the 2.4 GHz band turned on, your Express+ will not see the network.
Roku Streaming Stick +, 3810X, Ser YH0059427035, wifi - Samsung UN55ES6100
Roku Streaming Stick, 3600X, Ser 5S56D8240827, wifi - JVC EM37T