If all of your Roku devices have disconnected from your network at the same time, there may be an issue with your network or with the Roku devices themselves. Here are a few troubleshooting steps you can try:
Restart your Roku devices: Sometimes simply restarting your Roku devices can resolve issues with connectivity. Settings menu by navigating to Settings > System > Power (If there is no Power submenu, proceed to the next step.) > System restart.
Check your network settings: Make sure that your network is still broadcasting and that your Roku devices are still able to detect it. You can check this by going to Settings > Network on your Roku devices.
Check your router settings: Make sure that your router is set up to allow connections from your Roku devices. Check the router's settings for any firewall or security settings that may be blocking the connection.
Reset your network: If you're still having issues, try resetting your network. Unplug your router from power, wait a few seconds, and then plug it back in. Wait for the router to reboot and then try connecting your Roku devices again.
Check for updates: Make sure that your Roku devices are up-to-date. Go to Settings > System > System update to check for any available updates.
I have 5 Roku streaming devices that have all disconnected from my network at the same time. All other devices work. Network is strong. Any ideas?
With it happening on multiple devices simultaneously, the finger strongly points to something with the WiFi. First, I'm going to assume you are using an ISP that provides your router/modem. This could be a cable company, DSL, Fiber, or some other type. When the ISP provides the device, they usually retain control over its settings and functionality.
For some absurd reason, some ISPs have reached out and turned users 2.4 GHz WiFi radio completely off. If you're using a Roku that only supports 2.4GHz, you completely lose your connection.
Assuming your 2.4 GHz radio is still on, they might have changed a setting that interferes with your Roku connection. One such setting is the radio channel used. In the 2.4 GHz band, there are 14 available channels, 1-14. However, Roku devices only work on channels 1 through 11. If they changed your radio to channel 12, 13 or 14, you again lose all connection. Sometimes the router is simply set to "auto" and it selects the best channel to use. But if it selects one of those three, you Roku won't see it to connect.
Another setting is usually labeled "mode". Many ISPs have been setting the mode to G/N, which in theory should be just fine for your Roku, as they all support both G and N modes (at least any sold within the past 7-8 years). But for some unknown reason setting the mode to G/N again breaks the Roku's connection. You can see the connection, but it won't actually connect. Instead, the mode should be set to B/G/N. You Roku will still connect with the fastest protocol it supports (B is only about 11 Mbps, G is up to 54 Mbps, and N supports up to 300 Mbps). But that mode setting has messed up many a Roku user.
Some ISPs will allow you the user to change those settings. But others (such as Comcast/Xfinity) lock you out of them. If you can't log into your router/modem and adjust any of these settings, you'll need to contact your ISP support desk and ask them to change them. I fought Comcast for so long trying to get control over those settings I finally just bought my own router and put their modem in bridge mode, so I had complete control over my network settings.
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