Challenge
Both Veeam Backup & Replication and Veeam Backup Enterprise Manager are installed on the same server. Veeam Backup Enterprise Manager is updated to Update 4 with instance license, while Veeam Backup & Replication is still running an older version. After Veeam Backup Enterprise Manager upgrade Veeam Backup & Replication Console will not start with the following error message:
Cause
Veeam Backup & Replication 9.5 Update 3a or earlier do not support instance-based licenses
Solution
1. Close all Veeam Backup & Replication Consoles
2. Remove license information from registry:
3. Start Veeam Backup & Replication Console (it will be running in a Free mode)
4. Remove VMware ESXi hosts version 4.1 which are no longer supported.
5. Close Veeam Backup & Replication Console and upgrade with instance license