Unitymedia: error code 204 - how to fix the problem

Technical problems and malfunctions can also occur with large cable network operators such as Unitymedia. Error code 204 is displayed on your TV screen and indicates an error on the channels. You can take the following troubleshooting steps yourself.

Unitymedia error code 204

Error code 204 occurs in connection with television reception. This interference can affect one, several or even all transmitters. The error code is shown on the screen instead of the current TV program.

• If the error code is also shown on the display of your receiver, please follow the instructions there.
• You can also disconnect your TV from the mains. Switch off the device and pull out the plug. Wait a few minutes and then plug it back in. The problem may already be solved.
• Another measure can be to simply let the TV continue to run for a while. In some cases, the transmitters simply reset themselves.
• If these steps have not been successful yet, you can also switch your receiver off for a minute and then on again. To do this, use the switch on the front of the device. This restart can fix the problem.
• If nothing has changed so far, you can reset your receiver to the factory settings. If the problem persists, you will need to contact Unitymedia customer service.
• Before doing so, please check whether your smartcard is not damaged. You must also inform the Unitymedia customer service of this.