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After making sure the lasts Roku version has been installed, attempt to connect to the Wi-Fi network once again. Navigate to Settings> System> System Update, and then select “Check Now”. You need to ensure that the latest Roku version is installed.
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If you have an Insignia Roku TV and it is not connecting to Wi-Fi, it may be because the Roku version is outdated. This gives you better sound quality like the optical cable and also supports other surround formats like Dolby Atmos.
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You can also opt to use an HDMI ARC connection to manage all the sound between your sound system and the TV. If your sound system has an Optical port, you can opt to use this instead of RCA as the sound quality is better and it can support surround sound (5.1)
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This should serve to reset the TV hardware. If the above solutions to resolve the problem, try power-cycling the TV by turning it off and unplugging it for several minutes.If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier.Make sure that the antenna or cable TV is correctly and securely connected.Make sure that the audio cables are correctly and securely connected to your TV.If you are using a home theater system, soundbar, or external speaker system and have connected it with a digital audio cable, select Digital Audio Format/Audio Delay on the Audio menu, then select Audio Format to PCM.Make sure that you don’t have headphones connected.Use the remote to adjust the volume upwards. Check whether the TV volume is low and adjust it.Check whether your TV mute is on and turn it off.If your TV is on, there is good picture but no sound, try the following solutions: While it is unplugged, disconnect all the devices from the TV.If there is still no picture, try resetting your TV to resolve the issue: Change that setting from to “Off” if it was “On”. The description for this option is “Play the audio with the picture turned off”. Then scroll down until you see “Audio only”.Scroll to the right and select “Channels”.
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Press the “Menu” button on your Insignia remote control.If the above instructions don’t resolve the problem, there is another possible cause for select TVs. The video cable(s) you are using may be bad.Make sure that the video cables are connected correctly and securely to your TV.Press “Picture” to change to a different picture mode.
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