If having checked all connections, right router etc etc it may have been a problem with the way the PC / Laptop booted up.
This may mean that "bridgepalBroadcast" has not started.
To check this type in “Services” in the command box at the bottom left of the taskbar, and Enter.
In the windows that appears, double-click on “bridgepalBroadcast” and then click on “Start” if the service has not started. This will start the service and after around 15 seconds the phones should now connect after pressing “Retry” on the phones.
For future you may find it useful to have a shortcut on your desktop for the bridgepalBroadcast.exe so that you can launch it from there rather than go into services.