A network version becomes an attractive alternative as soon as multiple offices need to access the software. First, network traffic problems are not an issue. The software will always run on the local computer. The local computer requests a license from the license server (or workstation) only, utilizing very little resources in network usage.
The main advantage of the floating network license (even for one network user) in an environment that uses occasionally the software is the savings and flexibility that is provided by such an arrangement. All potential users can install the software on their local machine at different physical address and can use the software anytime by requesting a license from a server (which can be a simple workstation) located anywhere on the network (LAN or WAN). This is why we call this license a Floating license.
The disadvantage of the network license is when it is restricted to a one floating license in an environment where one or several offices have a heavy usage of the software. In this case, it is important to have more than one concurrent floating license. A two concurrent network floating license costs 50% more than a two standalone licenses but offer much more flexibility (the formula is [n+1] where n is the number of floating licenses). For example, in a two offices environment, if one office is extremely busy while the other is not, two network licenses can be used while this would not be possible with a standalone license at each office. Adding an extra license once one has a network license cost almost the same as a standalone license (the cost of upgrading to m floating licenses in a setup where one has already m-1 floating licenses is (m+1)/m times the cost of one standalone license. So meeting growing demand becomes easier and the chances that multiple users and multiple offices have a simultaneous need to all licenses decreases as the number of licenses is increased. Note also, the two or more floating licenses can be split on two or more license servers located at each office and the licenses can be requested from the first available server.
As far as being concerned about a possible temporary network failure, you will be able to define the number of attempts and time intervals between the attempts before terminating the run on the local computer. You even can setup the software to wait forever until the license server is back online or terminated by the user on the local computer. This solution will operate seamlessly across the different modules.
Finally, a network license authorizes access through VPN and terminal services.