Description of problem:

Cannot control host from BMC interface. Got the error: Failure: ERF12-2269 [ProxyAPI::ProxyException]: Unable to perform lan BMC operation ([RestClient::BadRequest]: 400 Bad Request) for Capsule https://stellite.example.com:9090/bmc

Version-Release number of selected component (if applicable):

6.12

How reproducible:

100%

Steps to Reproduce:
1. Refer the steps from the doc link to enable BMC
~~~~~~~~~~~~~~~
4.8. Enabling Power Management on Managed Hosts
https://access.redhat.com/documentation/en-us/red_hat_satellite/6.12/html-single/installing_satellite_server_in_a_connected_network_environment/index#enabling-power-management-on-managed-hosts_satellite
~~~~~~~~~~~~~~~
2. Configure the BMC Interface for the physical host

3. Checking the power status via the BMC Interface raises the below exception

Actual results:

Failure: ERF12-2269 [ProxyAPI::ProxyException]: Unable to perform lan BMC operation ([RestClient::BadRequest]: 400 Bad Request) for Capsule https://stellite.example.com:9090/bmc

Expected results:

It should show the power status without raising any exceptions.

Additional info:

The same settings are working in satellite 6.11. Moreover, the customer can trigger a reboot via the BMC Interface however checking the power status fails with an error.