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8/18/2021
Veeam Backup & Replication
11
No fixed releases provided.
When using Veeam Backup & Replication with a VMware environment the following error may be seen when using the Guest Credentials Test or when processing a VM that is in a DMZ or Isolated environment.
Veeam Backup & Replication uses the VIX API as a network-less connection method to perform Guest Processing when a VM cannot be contacted directly via RPC. Due to the way VIX operates, it is blocked by Windows User Account Controls. Also, because VIX relies on VMware Tools, if VMware Tools is out of date, issues may occur.
In VMware environments, Veeam Backup & Replication can use two methods to connect to a guest: RPC or VIX. If RPC is testing successfully, it is generally acceptable for the VIX test to fail as it will not likely be used.
If none of the provided account options are viable, it is possible to disable UAC. This will allow all accounts to be used for VIX-based networkless guest processing. This option should be considered a last resort as it involves disabling a major Microsoft Windows OS security feature.