I have a TCL Roku TV, model 49S405, Roku TV 7104X on Software version 8.1.0 build 4139-30.
This is a bedroom TV that often stays on overnight watching OTA local channels. Most mornings, although not every morning, I wake up to find the TV has lost connection to the internet. The white LED light on the bottom bezel is double blinking, Roku ads on the main screen will not load, and any attempt to access a channel or perform system update fails due to lost network connectivity. On the Network About screen, the Status is usually "Not Connected", although some times it shows "Connected", even though though internet access is not working. Performing "Check Connection" from the Network menu screen successfully restores internet connectivity, and all is well for several hours or overnight. Restarting the TV also fixes the issue, but Network "Check Connection" always works and is quicker.
This issue started with the 8.1 update. Noting else with this bedroom TV's usage pattern or my home network has changed. I have several other stand-alone Roku devices: Ultra, Premiere+, Stick+, and none of them exhibit this daily/nightly network loss issue.
Is this a known issue with the 8.1 update on (TCL) Roku TVs? Any other users with Roku TVs seeing this problem?
Thanks for help or suggestions.