Troubleshoot AllSync: App, Transmitter & Receiver Troubleshoot license issues of the AllSync Receiver? Troubleshoot network issues with AllSync Transmitter HDMI/Type-C Troubleshoot No touch responses (touchback) with AllSync Transmitter / Receiver Troubleshoot sound / audio issues when using the AllSync Transmitter Other problems? Please contact our customer service team, they will be happy to help you out.