After moving a VM to a new host or moving the SR140 license to a new server, the Brooktrout License Manager reports a 'wrong host' error. This article explains the reason for this error and how to ensure the license remains valid.
This can happen when a license is moved to a new server or if a VM is moved to a new host. Dialogic Brooktrout SR140 Fax Software (SR140) licenses are tied to the system node ID (also called 'node lock'), which is based on the host machine's MAC address and other variables. If this address changes for any reason, the license will become invalid and you will see a 'wrong host' error in the License Manager.
Refer to Article: How to re-host an SR140 license