I am having an issue with our Lync Web App. I am trying to host a meeting using the Lync 2010 desktop client. I would like for third parties outside of our domain to access the conference without requiring Lync 2010 client installed. I have sent an invitation to hotmail, gmail, and other email services. All of them (after allowing pop-ups) tell me that the "Microsoft Lync Web App failed to start. Contact the meeting organizer."

If I install the Lync Attendee, it seems to work. However, the Web App will not work. I have tried multiple computers and am using multiple browsers (IE11, FF30, Chrome 35).

The attendee is not very practical because when a meeting invite is sent, if you click it the system tries to open up the Web App and does not give you any prompt to install the attendee. I need the Web App to work for external employees, vendors, and other users outside of our domain and organization.

Any help would be greatly appreciated.

Thanks,

Adam

• Edited by hasnolimits 15 hours 58 minutes ago

Hi,

Which browser did they use (32 bit or 64 bit)? Lync Web App is not supported on 64-bit browsers.

Please make sure the issued computers have the Microsoft Silverlight 4 GDR 0 (Build: 4.0.50524) browser plug-in, or a later version of Silverlight, installed on your computer.

More details:

http://office.microsoft.com/en-001/communicator-help/supported-platforms-for-lync-web-app-for-lync-2010-HA101838128.aspx

Best Regards,

Eason Huang