Setting up Microsoft Lync from Office 365

After installing Lync on my 64-bit PC using 64-bit intall it would not connect.

Cannot sign in because the server is temporarily unavailable. If the problem continues contact your support team

Solved with the steps on this site:


Configure the Lync settings

  1. In the upper-right area of Lync 2010, click the Gear icon to open the Options page.
  2. In the Lync – Options dialog box, click Personal.
  3. Next to the sign-in address, click Advanced.
  4. Make sure that Manual Configuration is selected and that the configuration values are exactly as follows:

Internal server name or IP address:
External server name or IP address:

I did not need to change the firewall. So any changes I had tried, I reversed and removed.

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