coverity: configurator: CID 77624 Uninitialized pointer field
coverity: PhysicalEnvironment: CID 77625 Uninitialized scalar variable

added checks
coverity: NetworkConfiguratorBase: CID 84673 Unchecked dynamic_cast
coverity: NetworkConfiguratorBase: CID 84676 Dereference after null check
coverity: GenericNetworkConfigurator: CID 84672 Explicit null dereferenced