diff --git a/sagemaker-train/src/sagemaker/train/model_trainer.py b/sagemaker-train/src/sagemaker/train/model_trainer.py
index d07edeb025..74b373b93e 100644
--- a/sagemaker-train/src/sagemaker/train/model_trainer.py
+++ b/sagemaker-train/src/sagemaker/train/model_trainer.py
@@ -326,7 +326,7 @@ def _populate_intelligent_defaults_from_training_job_space(self):
         if not self.networking:
             if default_enable_network_isolation is not None or default_vpc_config is not None:
                 self.networking = Networking(
-                    default_enable_network_isolation=default_enable_network_isolation,
+                    enable_network_isolation=default_enable_network_isolation,
                     subnets=self.config_mgr.resolve_value_from_config(
                         config_path=TRAINING_JOB_SUBNETS_PATH
                     ),
@@ -342,8 +342,8 @@ def _populate_intelligent_defaults_from_training_job_space(self):
                     config_path=TRAINING_JOB_SUBNETS_PATH
                 )
             if self.networking.security_group_ids is None:
-                self.networking.subnets = self.config_mgr.resolve_value_from_config(
-                    config_path=TRAINING_JOB_SUBNETS_PATH
+                self.networking.security_group_ids = self.config_mgr.resolve_value_from_config(
+                    config_path=TRAINING_JOB_SECURITY_GROUP_IDS_PATH
                 )
 
         if not self.output_data_config: