Problem

A MathType user enconters a problem where a previously activated copy of Mathtype opens with an error stating the license has expired.

Applies to

1. Mathtype
   

Resolution

Other than a genuine expire license this scenario may occur due to communication difficulties or corrupted registry data causing activation to fail.

1. Please use the steps below to clean the registry of old data to correct the problem and try again.
   
2. Then use the steps to check firewalling and proxy server considerations.
   Contact WIRIS with details, they may need to create a new serial to fix the problem.

Method 1 – cleaning registry data

3. Open the MathType standalone version and go to Help >> Unlock/Register MathType...
4. Click on "Delete all data".
5. Enter your product key again. Please copy and paste it to avoid typing mistakes.
   

Method 2 – check firewall and proxy connection.

For computers in manged environment check if a proxy server is being used.

On Windows

1. Right-click on the Start button and click Setting
2. Go to Network & Internet > Proxy.
3. See if the Use a proxy server option is on.

Additionally, please check if you can connect to the following link https://www.wiris.net/license/validate.

Below is a picture showing the expected response of the link in the web browser. If it does not return the expected (shown below), please tell us.

If you determine your connection uses a proxy, please contact your internet or proxy provider to know how to whitelist www.wiris.net. If it's determined that the firewall is causing the issue, please do the same for it.

If it is not possible to connect through the given Internet connection, there are other possible workarounds:

• Disable the firewall/filters temporarily to update the licenses.
• Ask Wiris support to create a new product key with an updated expiration date.