Windows / iOS Application:
"Your server is not available or does not support this application"
"This operation failed because you're offline. Reconnect and try again."
This error can occur with an online organization if your organization is federated with Office 365 and the certificate for your federation server, such as ADFS, is not trusted.
Adding the Certificate Authority certificate to the proper device will require you to export the Certificate Authority certificate from a device that has it and then import it. In most cases, you can simply get the exported certificate on the device and open it to install/import it.
"Security certificate required to access this resource is invalid"
"Loading app failed due to SSL error"
For more information about installing the Certificate Authority certificate see the following articles:
Windows - http://social.technet.microsoft.com/wiki/contents/articles/2167.how-to-use-the-certificates-console.aspx
iOS - https://www.apple.com/hk/en/ipad/business/docs/iOS_6_Certificates_Sep12.pdf
Android - https://support.google.com/nexus/answer/2844832?hl=en
For information on how to enable tracing in CRM for Tablets, refer to the following article:
Enable tracing in CRM for tablets
Article ID: 2899983 - Last Review: Aug 11, 2016 - Revision: 1