The theoretical limit is 32766, but the practical limit depends on a number of factors:
– How the licenses are used;
– Network bandwidth;
– The machine the License Server is installed on.
– How many users are attempting to get a license at a time, etc.
If 32766 machines are all trying to get a single license key (feature) from the License Server at the exact same time, this would not work on any setup. A more practical limit, of what would be considered general usage, should be closer to 100, but it depends more on factors other than what the License Server itself can handle.