The most common error in Roku is Roku Error code 014. To overcome this issue, first, you have to update your software. After getting an update there are two simple ways to fix Roku error code 014: Rebooting and Reset process.
Rebooting: Unplug the power cable and switch off the device, Then wait for a second and then boot up the router. You can now connect the player.
Reset process: Now go back to factory settings and connect the cable to the router and the Roku. Then start the activation process, when both the devices got connected, allow the software to update. Create communication between the router and the Wi-Fi. When the activation process is complete, the Roku error code 014 will disappear forever.