Forum Discussion

slake2074's avatar
slake2074
Reel Rookie
3 years ago
Solved

Roku TV can no longer connect to 5G internet

My 50" TCL Roku TV has connected to the 5G internet signal for years. Now, it can't even find it. I've rebooted the TV and the router. Every other device connects to and locates 5G just fine. Why wou...
  • AvsGunnar's avatar
    AvsGunnar
    3 years ago

    slake2074 

    There are a few possibilities.

    1. The RokuTV may not be able to find the network if the router has switched to an incompatible 5ghz Wireless channel.  Roku cannot see or use DFS channels (52-140). 

    2. The RokuTV wifi module may have failed.  If your RokuTV can still see the 2.4ghz band, then you can likely rule this out.  If you go to Settings/Network/About and see a MAC address, then you are good to go.  If your MAC address is all zeros (00), then there is an issue with the wifi module.

    3. The RokuTV is just having an issue recognizing the 5ghz radio.  Try performing a System Restart (Settings/System/Power/System Restart) or try a Network Connection Reset (Settings/System/Advanced System Settings/Network Connection Reset/Reset Connection).

    ----

    If you can still connect to the 2.4ghz band, then I would look at the first possibility. (DFS channel usage).  The remedy for this is to either Disable DFS in your router, or manually assign a Wireless Channel on the 5ghz band to use 36-48 or 149-161. If you are sure your router does not use DFS, then you can leave set to Auto, but recommended to manually assign a channel during troubleshooting to see if it resolves issue.

AvsGunnar's avatar
AvsGunnar
Community Streaming Expert
3 years ago

slake2074 

There are a few possibilities.

1. The RokuTV may not be able to find the network if the router has switched to an incompatible 5ghz Wireless channel.  Roku cannot see or use DFS channels (52-140). 

2. The RokuTV wifi module may have failed.  If your RokuTV can still see the 2.4ghz band, then you can likely rule this out.  If you go to Settings/Network/About and see a MAC address, then you are good to go.  If your MAC address is all zeros (00), then there is an issue with the wifi module.

3. The RokuTV is just having an issue recognizing the 5ghz radio.  Try performing a System Restart (Settings/System/Power/System Restart) or try a Network Connection Reset (Settings/System/Advanced System Settings/Network Connection Reset/Reset Connection).

----

If you can still connect to the 2.4ghz band, then I would look at the first possibility. (DFS channel usage).  The remedy for this is to either Disable DFS in your router, or manually assign a Wireless Channel on the 5ghz band to use 36-48 or 149-161. If you are sure your router does not use DFS, then you can leave set to Auto, but recommended to manually assign a channel during troubleshooting to see if it resolves issue.

  • jp3074's avatar
    jp3074
    Newbie
    3 years ago

    ok, I have two boxes they both worked with my 5g we had a thunderstorm power went out. now 1 box works fine but the other now has only the 2g and cannot find the 5g, I've tried everything.

    • RokuEuniceL's avatar
      RokuEuniceL
      Retired Moderator
      3 years ago

      Hi jp3074,

      Welcome and thanks for posting to the Roku Community!

      We're happy to help you connect your Roku to the network. We'd like to know more details about the problem you encountered.

      1. What Roku device are you using right now? (e.g., Roku Express, Roku Stream Bar, Roku TV; specify TV)
      2. When trying to connect to your network, what do you see on your screen? (before putting in the network credentials)
      3. Are you getting any error messages or codes after trying to connect to your network? (after putting in the network credentials)
      4. How far is your device from your network router?

      With detailed information, we will be able to assist you further.

      Best regards,

      Eunice

    • atc98092's avatar
      atc98092
      Community Streaming Expert
      3 years ago
      jp3074 wrote:

      ok, I have two boxes they both worked with my 5g we had a thunderstorm power went out. now 1 box works fine but the other now has only the 2g and cannot find the 5g, I've tried everything.

      The first thing to check is the first suggestion in the accepted answer. Odds are your router powered back on after the power failure they selected a DFS channel, which Roku devices can't use. 

      The other possibility is that the power failure damaged your router and broke the 5 GHz radio. The way to check that is to see if any other device can still see your 5 GHz radio. Just remember that not all WiFi devices support 5 GHz, so any such device wouldn't provide an accurate test.