If you are a Sonnet Lite user, you have several methods of support available to you:

1. Sonnet Community Forum: Our web-based forum for Sonnet users to exchange technical ideas, questions, and advice on using the Sonnet high frequency planar EM simulators. Participation in the list is free.

2. Sonnet Lite Troubleshooting Page: For installation and registration issues. 

3. Knowledge Base: Comprehensive help including tips and tricks for Sonnet Lite through Sonnet Professional suites.