We have a problem with viewing shared desktop/app with external contacts in a conference. We're able to share/view desktop/app directly with an external users, but not in a conference. We get the error message: "Sharing failed to connect due to network
issues. Try again later."
If we're using the web app on the same computer where we have the problem, we're able to view the content in the conference.
It's working fine internally, it's also working fine when users are outside of our office.
All other functions in Lync are working fine.
We have 1 standard Lync server and 1 Edge, we don't have a reverse proxy but multiple IPs with port forward to corresponding ports on each server.
How does the Lync client connect the shared content?
