If you select "Network", then "Continue", from the Registration Dialog, FlexPDE will search your network for a running license manager, and return the status of that license.
Unlike local dongle registration, Network Dongle registration automatically installs the network dongle as the active registration method. You will not be given the option of registering the dongle. This success or failure of Network Dongle registration depends only on the presence or absence of a valid license facility on the network. It does not examine the available licensed capabilities.
In future, every time you start FlexPDE, it will expect to find a network license manager to grant licenses. In fact, the request for a network license will not be made until you actually "Run" a problem. At that time, a license of the appropriate class, 1D, 2D or 3D will be requested from the network. The acquired license will be held until the current invocation of FlexPDE is terminated. In this way, networks of FlexPDE users can get optimal use out of the mix of 1D, 2D and 3D licenses that have been purchased.
When you "Run" a problem with the network licensing method, if the license manager finds that all available licenses are in use, you will be given the option of waiting for an available license or running in demonstration mode.
Note: The search parameters for finding a running license manager can be controlled by editing the "nethasp.ini" file in the FlexPDE installation folder. See comments in the file for explanation of the settings.