Cannot Contact Provisioning Server In. Contact your IT administrator for the information to enter into the Server field. Check the release notes for VOIP-97822 and was fixed in 552 or 531 or later.
Download the MDM Diagnostic Information log from Windows 10 PCs. If a server name does not appear in the Server field the application cannot find a provisioning server. From the Provisioning Services Console verify the Provisioning Server appears when the Servers node is selected.
You may need to liaise with your Network Administrator to confirm the DHCP Options or if the Phone can reach the Provisioning Servers IP AddressHostname.
Click or tap Sign In. If a server name does not appear in the Server field the application cannot find a provisioning server. Follow the below steps for validating your account credential in Outlook. I do not know what to do to fix this licensing problem.