After trying each of the following steps, try to log into the event/archive again before moving to the next step.
Take the Browser Test. You should see a Congratulations message and hear a pre-recorded audio message. If your browser does not pass this test, go to www.flash.com to download the required Adobe Flash software. Once at the site, go to the "Downloads" menu at the top and choose "Get Flash Player."
Check your computer audio. NLC webinars are streamed over the internet and require a computer with quality external speakers or a headset to listen to the audio. Make sure your speakers are on and your volume is turned up.
If you are already logged into the meeting and experience a problem (slides stop advancing, streaming audio stops/fails, etc.), try clicking the "refresh" button in your web browser.
Clear the cache in your web browser. Then close your web browser completely. Open your web browser again and try logging into the event/archive again.
It is recommended that you use a PC with Windows and Internet Explorer 7.0 or higher. If you are using a Mac, please use the Safari web browser. With a high speed/broadband internet connect. Wifi is not recommended.
Make sure you do not have pop-ups disabled in your internet browser settings.
Make sure that your internet browser is Active X enabled.
If none of the above steps resolve the issues, direct your web browser to http://www.getfirefox.com and download Firefox. Next reinstall the Adobe Flash software by visiting www.flash.com . (See step 1.)
If none of these steps are successful, the issue may be related to (a) internal firewall settings, (b) internal internet settings or (c) the speed/capability of your internet connection. You should consult your IT department or internet provider. Please make sure the following the following IP addresses are open: 188.8.131.52 port 80 (web and Flash file delivery) 184.108.40.206 port 80 (web and Flash file delivery) 220.127.116.11 ports 1935, 443, and 80 (Flash RTMP and RTMPT streaming) 18.104.22.168 ports 1935, 443, and 80 (Flash RTMP and RTMPT streaming) 22.214.171.124 ports 1935, 443, and 80 (Flash RTMP and RTMPT streaming)