Roku keeps disconnecting from Wi-Fi: Fixes. Method 1: Restart Roku. Method 2: Check and troubleshoot Wi-Fi connection issues. Check the strength of your connection: Power cycle router: Change router bandwidth: Disconnect other devices connected to the router: Use a Wi-Fi extender. Use an Ethernet Cable instead. Learn what causes the WiFi loss issue on LG Smart TVs and how to fix it with simple steps. Restart your TV, move the router closer, change the channel, disable quick start and simplink features, and more. How to factory reset LG TV. Turn on your LG TV. Then, press on the Gear icon of your TV’s remote. Then go to the All Settings (Advanced Settings) option. Navigate to the “General” option. Select “Reset to Initial Settings”. Now, Your TV will turn off and on again and then display the initial setup screen. Reset my network settings. Went to my router settings to choose the ideal channel bandwidth and wireless channel by consulting a wifi analyzer app, I made sure that I chose the least congested channels; 161 for 5g and 1 for 2.4g. Changed my SSID name and password for my 5g network. Set a network-wide DNS inside the router. I recently change my Google wifi to the Deco x75. All my devices work perfectly, except my LG smart tv. At random times, the TV loses wifi connection. I go look in the menu and it is indeed disconnected. In the Deco app it is still connected. I need to reboot the tv and hope for the best again. I tried all troubleshooting steps, but no effect. 0Q3p0.