We're using the MSFT elearning at our company, but I have a problem to launch the labs from my pc. (other content gives no problems)
I've tried giving in one of our proxy servers, but this doesn't help either. Normally this should work without connecting to the proxy server apparently.
Please contact Alicia at learnmgr@microsoft.com to discuss this issue further and she will be happy to put you in touch with the team that supports this issue.
Also request you to provide more information about the course number and URL you are using etc.