@Lucca can you try "C:\Program Files (x86)\UiPath\Orchestrator\Tools\Cli\UiPath.Orchestrator.Cli.exe" protected-configuration -pe "connectionStrings" -site "UiPath Orchestrator" -app "/" -prov "RsaProtectedConfigurationProvider"
I saw that you’re still using aspnet_regiis, which has been superseded by UiPath.Orchestrator.Cli.exe as per UiPath documentation.