Wi-Fi & connectivity

[Rolberding]

A few days ago I was streaming with my Roku device, when I had an internet outage ( not a power outage). This lasted about an hour. When internet service was restored, my Roku could no longer connect to my network (TMobile). Yes, I have disconnected and restarted my modem, router, and Roku device. Yes, I have contacted TMobile. Yes, I have reset my Roku. All other computers and phones in the house are connecting just fine to the internet. Could a mere internet outage fry my Roku device?

[JWS9518]

An outage can cause a surge in a network similar to an electrical outage.  It is less likely than an electric outage, but yes it can happen.  Some surge protectors have surge outlets to protect network lines and cable lines as well as electric plugs.  If you haven't tried this, try unplugging the Roku, the modem, and router for 1 to 2 minutes, then plug modem back in, wait, then router, wait and finally the Roku.  If that doesn't help, see if you can go into the Roku network settings and forget your network and try setting it up as if it was new.  A last resort would be factory resetting.  

[Trasean]

Even factory resetting my Roku 4k did not fix my internet issue 

[AvsGunnar]

@Rolberding 

The TMobile Gateway is capable of using DFS channels and some are equipped with wifi6 (ax).  Not all Roku devices can use DFS and the majority cannot use wifi6 currently. (excluding Roku Ultra 4850 and Roku-branded Plus/Pro series of RokuTVs).

Depending on the model number of your Roku device (found in Settings/System/About), may need to adjust the settings in the Gateway to get the Roku to connect again.

If you have a wifi6 TMobile Gateway, verify that you have b/g/n/ac enabled as well as ax protocols in the Wireless Settings. (ax will only be for your wifi6 devices to connect).  Additionally, under your Security Settings (wifi password), verify that WPA2-Personal/PSK is enabled as well as WPA3. (WPA3 will again only be used for your wifi6 devices).

Finally, make sure your 2.4ghz band is still enabled and broadcasting on the Gateway.  Give this band a separate name than your 5ghz band(s) and use a password without special characters and see if your Roku device can connect to that band.

Additionally, restarting the Gateway a few times may allow for a compatible channel to be used with your Roku device but that is kind of winging it so verifying the above settings would be better step.