We recently federated our O365 tenant with Centrify, an external SSO provider.
The only system not functioning properly is our Skype Room System v2. The Skype connectivity tool gives us a 401 response code, No Common authentication method detected.
In the Lync trace files we can see the attempt to send the soap auth over to Centrify, but Centrify returns an http 500 error.
Anyone use SRSv2 with an externally federated SaaS like Okta or Centrify?