We made a server side update over on June 24, 2017 that affects the TFA mechanism for SSO users.
In most cases this does not require a change but if you are using the Desktop App (Egnyte Drive) on Windows machines where more than one drive is being added per machine, and you are using SSO with TFA, you should ensure you are on version 2.0.2 or later of the Desktop App for Windows. Without doing so, you may encounter issues when adding a second or third drive to the machine using SSO and TFA together.
To upgrade, download and run the latest installer from the link below:
Egnyte Connect Desktop App Latest Installers