Fix: Cannot sign in because the server version is incompatible with Skype for Business

less than 1 minute read

To get Skype for Business (Office 2016) working with an older OCS or Lync server create the following registry key and you are good to go.

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Office\16.0\Lync DisableServerCheck (DWORD 32-Bit Value): 1