Hi,

Which Lync Server Edition did you deploy?

Did the issue happen internal or external the corporation?

Please check if the issue happen only for you or for multiple users?

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

Alan

I have the lync 2010 on but  can not sign into Lync ...   Do I need to do anything 

Hi

Where are you trying to sign in from? external to your LAN or internal? Do you use Lync 2010 server, 2013 or Skype for Business On Prem or Online?

Please elaborate on your issue so we can best advise.

thanks