It has been seen that the Hulu error P-Dev302 error generally occurs on Vizio TV. If you also see this error on your Vizio TV, restarting or resetting your smart TV can help fix it. To Restart Your Vizio TV Restarting your smart TV will clear your TV's memory and its applications and boost its processing speed. - Turn off your smart TV. - Wait for at least 30 seconds before you turn on your TV. - Now, access the Hulu app. The error should get cleared. To Reset Your Vizio TV In case restarting your smart tv doesn't clear the error code, you can reset the settings of your TV by following these steps: - Press the menu button on your Vizio TV remote. - Navigate to the System option and press OK. - Then, select the Reset & Admin option and press OK. - After that, locate the Reset TV to Factory Defaults option and choose OK. - Your Vizio TV will reset to factory defaults. - After resetting, check if the error code p-dev302 is cleared.