Before installing ZEMAX on the client machine, repeat the last part of the server installation procedure to ensure that this machine can see the keyserver. Start Internet Explorer on the client,  but this time type the following into the address bar:

http://{IP address of keyserver}:7002

For example, if the keyserver is on 10.0.0.1 you would enter:

http://10.0.0.1:7002


 

If you cannot connect to the keyserver using the web browser, then the keyserver cannot be seen over the network by the client. Stop and resolve this problem before continuing.

It is possible that Internet Explorer will have to download Java 1.5 from Sun MicroSystems in order for this display to be see. The number under "Hard Limit" should correspond to the number of network licenses you have purchased. If you see a screen similar to this, the client machine can see the keyserver successfully.

Now download the latest ZEMAX version from our updates page, and install it. You do not need to install any key driver software, unless you intend to be able to run a standalone key as well as a network key.

Lastly, you must tell ZEMAX where to find the keyserver machine. Use Windows Explorer to open the /zemax installation folder, and rename the file sntlconfig.xml.bak to sntlconfig.xml. Then open it in Notepad or other text editor. You will see:

Within the highlighted region, add the IP address of the keyserver machine. In this example the keyserver is 10.0.0.1 and so you would make this file:

And save the file. This file MUST be in the same folder as zemax.exe. Note that any shortcuts to ZEMAX must be configured like so:

The 'start in:' entry must point to the folder where zemax.exe and sntlconfig.xml are both located, otherwise ZEMAX will not know where to look to find the key. ZEMAX should then start normally and take a network license from the keyserver machine. Shortcuts created by the ZEMAX installer do this automatically, but sometimes shortcuts that were created manually do not.

If ZEMAX cannot find the network key, but you can see it via the browser method above, then an application-level firewall running on the client computer is preventing access. Consult your firewall's documentation to see how to allow zemax.exe access to the local area network. We are unable to provide support on how to configure firewalls. However, here is how McAfee Personal Firewall was configured to allow ZEMAX to access the keyserver: