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Error: "Virtual lab supports maximum of 9 networks."

KB ID: 4353
Product: Veeam Backup & Replication | 5.0 | 6.1 | 6.5 | 7.0 | 8.0 | 9.0 | 9.5 | 10 | 11 | 12 | 12.1
Published: 2022-09-27
Last Modified: 2023-09-06
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Challenge

When configuring a SureBackup Virtual Lab for a VMware vSphere environment, attempting to add more than 9 Isolated Networks or configure more than 9 Isolated vNIC adapters will cause the following error to be shown:

Virtual lab supports maximum of 9 networks.
Add isolated network error
Screenshot of Error

Cause

The Virtual Lab Appliance is a Virtual Machine, and Virtual Machines can only have a maximum of 10 Virtual NICs.

One of the ten possible Virtual NICs is assigned to the production network to allow the Virtual Lab Appliance to communicate with the Veeam Backup & Replication server, leaving nine vNICs available for assignment to the isolated environment.

Solution

You can assign only up to 9 isolated networks per virtual lab. If the environment necessitates creating a Virtual Lab with more than 9 Isolated Networks, instead create multiple Virtual Labs and appropriately assign SureBackup jobs to those Virtual Labs.

More Information

Prior to Veeam Backup & Replication 12, the error message shown was:

Virtual lab supports maximum of 9 networks by default.
If you need to add more networks, please contact support.

Contrary to the pop-up error message wording, there is no way to bypass this limit.

Screenshot of Error
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