Hi,
We have a Lync 2013 FE pool with Federation and External Access enabled. The External Access via the Edge works well as the certificates are valid public certs. Mobile devices work well (Android, iPhone/iPad, Windows 8.1).
However, these devices (e.g. Windows 8.1 on Nokia) do not connect succesfully on the Internal corporate WiFi. The certificates on the FE servers are signed by the AD Enterprise CA. The Root CA is being installed on the device but the connection still fails:
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An error occured in Lync. Please retry.......
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Can I have that certificates with internal (e.g. int-domain.local) domains as SAN signed by external (public) CA?