I am in an apartment and our internet is Spectrum. Spectrum updated us to Fiber Optics. The internet as well as Roku stopped working. I have spent endless hours on the phone with Spectrum. They tried to help me get Roku working without any success. I got into my Roku account and with the directions given I was able to get a connection. It worked fine yesterday and last night. Tonight I have been watching for about 30 minutes and it lost connection. Repeated efforts to connect, per the instruction on Roku, were fruitless as it is not locatiing the connection. My laptop is connected just fine. Any answers????
Furthermore, if the affected device is either a Roku Express or Roku Premiere, please note that they are only compatible with wireless b/g/n networks on the 2.4 GHz spectrum. Ensure that your router is broadcasting a 2.4GHz Wi-Fi network for the device to connect to. You can check your device model by navigating to Settings > System > About.
You can also try configuring your router and use wireless channels 1, 6, or 11 which are the preferred channels in North America. Each time you change the wireless channel, you will likely need to apply/save changes before you are prompted to restart the router.