This usually happens when the key is corrupt or when the internet connection isn’t stable on the machine or if the Master Wizard is run using RDP. Therefore, make sure that the Master key is connected locally on the machine and the Internet connection is stable while running Master Wizard.
“Failed to decrypt Sentinel API, please try again” error while introducing master key
The error can occur when connection with master key is disrupted at the time master wizard is being executed. Following scenarios needs to be avoided: 1.) Master key abruptly unplugged while the same is being introduced. 2.) Internet connection disconnected while the master key is being introduced.