Click on the padlock next to the internet address at the top of your browser (Pictured Below)
2. Make sure your Camera and Microphone are set to ALLOW (Pictured Below)
3. Try to share your camera and microphone again
If you feel your camera or microphone may not be working properly please visit this website (http://test.webrtc.org/).  If any of the test fail please copy the error they give you and email it to tech.dept@palmerton.org