The new iOS version will detect that the app is connecting to a local resource on the network and show a dialog. The dialog asks the user if they want to allow the local connection. After clicking “OK” the app will just hang.
However, the app will work if you force close/Swipe it and reopen it.
If you selected “Don’t Allow” previously, you can still change it by opening Settings and scrolling down until you see the skyBeacon, echoUAT, or ping app.
Select it and enable “Local Network”