Tried the advanced systems setting & network connection reset. It didn't work. For whatever reason my two Roku devices just stopped recognizing my wifi network. All other devices work fine so its not the router
If your Rokus no longer show your Wi-Fi SSID as an available network then it's likely your router has its Wi-Fi channel set to "Auto" and it switched to an unsupported channel. Post more information including the model numbers of your Rokus and whether you're trying to connect to 2.4GHz or 5GHz Wi-Fi.
Device Model 3900X Roku Express
Serial number YG006N659751
software version 9.4.0
Can't see or find any network to connect to after factory reset
Hi cperrigo08
Thanks for reaching out here in the Community.
If you are getting an error code or message, refer to this link for common Roku error codes and their recommended actions: How to connect your Roku device to the internet using Wi-Fi or Ethernet
Furthermore, please be advised that your Roku Express (3900X) is 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 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.
Let us know how it goes!
All the best,
Kariza
