Starting Dec 4th, 2018 Z App 1.4.3 or higher version is required for ZPA. Users who are on lower versions of Z App will see Connection Error in Private Access section of Zscaler App and will be unable to connect to ZPA.
Z App on user's device must upgrade to version 1.4.3. Z App 1.4.3 is available for download from your organization's Z App portal. If you do not see this version in your Z App portal, please contact Zscaler Support.
Once the user's device has upgraded to required Z App version, Z App will successfully connect to ZPA.
If users are unable to upgrade to ZApp 1.4.3 Zscaler recommends the following actions