1. User creates an Online Meeting
2. Everyone can join to it with Lync client installed
3. When trying to join without Lync client (or forcing it with "?sl=") an error is received:

The meeting link you are using to join is not valid. Please check the link and try again.

I've tried it with the lates Chrome and IE versions.

Any ideas?

EDIT: Seems to work with older IE browsers...

• Edited by tkomulai 20 hours 56 minutes ago

Hi,

From your description above, it is the issue of the wrong suffix "?sl=". The correct suffix is "?sl=1". Please test if with the correct suffix and check if the issue happen again or not.

More details:

http://blogs.technet.com/b/toml/archive/2011/02/04/how-to-force-the-use-of-the-lync-reach-client-just-append-this-to-the-url-sl-1.aspx

Best Regards,
Eason Huang