NoAudio when trying to connect with certain members

[Michael_wam]

We have the same problem.

One of us has a Mac and other Windows 10 and everything works well between them. But other two of us look grey in the same session, with the message "No audio?" in their track. Curiously, one of them hears other person but not us. The warning message of no audio from some peers appears. 

Could someone of you help us, please? Thank you.

Hi Mercedes,
finally, it works.
We followed all the settings recommended in this forum with our routers (Port etc.). Then, after I installed the asio4all driver we could get connected.
What helped at the end is not that clear, but it keeps working....