Eu encontrei uma solução em
do usuário Matt. Eu cito:
I have been working with Microsoft for a couple of weeks on this and we have identified a workaround that resolves the issue.
To be clear on my environment: I am using Windows Server 2012 with Lync Server 2013. The issue was that the Lync 2013 Client could not login to the Lync 2013 Server while the Windows 8 Lync APP and the Lync 2010 client could log in. We were receiving a lot of SChannel error messages (36888 and 36874) in the System log indicating TLS errors 10 and 40 and SChannel errors 1205 and 1203. Basically the Lync 2013 client was unable to negotiate TLS 1.2 with the Lync 2013 Server.
To Resolve this issue do the following:
On the Lync 2013 server open the registry and browse to the following location: HKLM\System\CurrentControlSet\SecurityProviders\SChannel\Protocols
Create the following Key under Protocol: TLS 1.2
Create the following two Keys under TLS 1.2: Client and Server
Create the following DWORDs under both the Client and Server Key: DisabledByDefault and Enabled
Under both Client and Server set the following: DisabledByDefault=1 and Enabled =0
Reboot the server.
Entering these keys Disables TLS 1.2 on the server forcing the client and server to communicate over TLS 1.1.
Good Luck,
Matt
Isso funcionou para mim.