Incorrect K_g BMC key

When commissioning ,I got errors like this:

Failed to query node’s BMC - Incorrect K_g key, trying again without K_g key
Failed to query node’s BMC - Incorrect K_g key. Check BMC configuration and try again.

Pls help
Many thx

As per error message you have to check what’s the k_g key of your BMC. You have to login to your BMC and check it

Is there any other method to avoid use this “K_g key” ?
To commission through other way?
Maybe use snmp or redflash ?

Sure, you have to remove the k_g key from your BMC config

Is there a config in maas, could change the method to snmp or redflash?

In theory if you commission the machine MAAS should automatically get the K_g key of your server