Java security setting for AT Command Tester


To run AT Command Tester, please set the Java ‘Security Level’ to medium. On Windows system, go to Control Panel->Java->Security. Make the security setting as shown below.Then re-launch AT Command Tester.

For more help, check the AT Command Tester Troubleshooting guide.

Java security setting

If your Java Control Panel looks like below, add the 2 URLs in the “Exception Site List’ as shown below,