I got issue on outlook 2016 where Skype for business (Lync 2016) status for contacts not showing.
I have followed below steps and worked
1. Open RegEdit by typing in run command (WinKey + R)
2. Go to Path HKEY_CURRENT_USER\SOFTWARE\IM Providers
3. Update DefaultIMApp value as "Lync" as in screenshot below
4. Restart outlook
Ref: https://blogs.msdn.microsoft.com/rathomas/2012/12/03/outlook-2013-users-are-unable-to-see-the-presence-info-in-outlook/
I have followed below steps and worked
1. Open RegEdit by typing in run command (WinKey + R)
2. Go to Path HKEY_CURRENT_USER\SOFTWARE\IM Providers
3. Update DefaultIMApp value as "Lync" as in screenshot below
4. Restart outlook
Ref: https://blogs.msdn.microsoft.com/rathomas/2012/12/03/outlook-2013-users-are-unable-to-see-the-presence-info-in-outlook/