Ping viewer next is not able to automatically find ping devices connected to the Ethernet network. Even though it shows up in the Ping Sonar Devices, you need to manually type in the IP address.
ref: https://discuss.bluerobotics.com/t/pingviewernext-missing-features/22758/3
ref: https://discuss.bluerobotics.com/t/pingviewernext-missing-features/22758/3