Lehigh University has a firewall on most of its networks. This firewall blocks all incoming IP traffic. The Electrical Engineering and Computer Science network, from where the Lehigh Tanner License Server runs, is (or will shortly be) behind this firewall.
Because the Lehigh University Tanner License Server is behind the Lehigh University Firewall, your machine at home, outside the Lehigh network, will not be able to see the Lehigh Tanner License Server. Hence, if your machine at home can't see the Lehigh Tanner License Server, then your machine can't run the LEdit program. Therefore, you must connect to the Lehigh University VPN in order to run your Tanner LEdit application from off-campus.
These instructions pertain to the software L-Edit v12.20 and T-Spice v12.20.
If you live on campus, and your machine at home is within the Lehigh network, you do not have to worry about any of the VPN stuff mentioned above.
You can find information on setting up the Lehigh University VPN at the following locations:
The difference between the two sites listed directly above is that the Lehigh University site VPN page tells you how to connect to the Lehigh University VPN, and David's pages tell you how to connect and integrate some stuff after connecting. If you have problems with David's pages, always make sure you are conforming to anything the Lehigh University Computer Center pages have on them.
If you are having problems with connecting to VPN, or other VPN problems, please contact the Lehigh University Helpdesk.