Do you have Lync serves sitting on somewhere that provide you with a sign in account?. Or O356 subscription which include Lync?. Remember, Lync is not a consumer product. Unlike other public providers, Lync needs backend servers to connect and Lync enabled user accounts.
Hi,
Microsoft Lync Server is an enterprise real-time communications server. The Lync client is used to connect Lync Server. The Lync client is only meant to be used with a Lync Server (hosted in a corporate environment) or an account hosted on Office 365 with Lync functionality enabled. After you doing that you can create a user on Lync Server and login to Lync Server with Lync client.
Best Regards,
Eason Huang