Can SchoolLeader run on a Wireless Network?

Yes and No.  The problem isn't a compatibility issue with SchoolLeader or the SQL Server database engine.  The problem is primarily related to the inherent unreliability of a wireless network.   To perform properly, you need a reliable and constant connection open with your server.  Wireless networks notoriously go "up and down" due to momentary interference problems with the signal.  Although this won't negatively effect your ability to visit websites on the internet using a browser, it can be highly disruptive for a database connection with your SchoolLeader server.  For this reason, we do not support SchoolLeader on a wireless network, and recommend users implement a reliable Local Area Network (LAN) using standard ethernet cabling (Category 5 or better).