This message in Dante Controller when trying to make a subscription between devices suggests that no audio packets are being received by receiver. This could be caused by a few things such as:
- The transmitter stops sending
- packets dropped in the network
- The receiver not receiving
- The receiver fails during processing
The most common cause of this issue when using software such as a firewall or antivirus application on the machine. For Windows machines, Audinate have an example guide for configuring the built-in firewall at Windows Firewall Configuration
Another common possibility is that something within the network is preventing the correct propagation of traffic. Ensure that nothing within the network is blocking traffic as specified in Dante Ports
This message may also be caused if the sending device has gone into sleep mode.