diff --git a/gns3server/modules/dynamips/__init__.py b/gns3server/modules/dynamips/__init__.py
index d68bf5f5..86069668 100644
--- a/gns3server/modules/dynamips/__init__.py
+++ b/gns3server/modules/dynamips/__init__.py
@@ -213,7 +213,11 @@ class Dynamips(BaseManager):
         # save the configs when the project is committed
         for vm in self._vms.copy().values():
             if vm.project.id == project.id:
-                yield from vm.save_configs()
+                try:
+                    yield from vm.save_configs()
+                except DynamipsError as e:
+                    log.warning(e)
+                    continue
 
     @property
     def dynamips_path(self):
diff --git a/gns3server/modules/iou/__init__.py b/gns3server/modules/iou/__init__.py
index 97bf678a..92ffb526 100644
--- a/gns3server/modules/iou/__init__.py
+++ b/gns3server/modules/iou/__init__.py
@@ -26,6 +26,9 @@ from ..base_manager import BaseManager
 from .iou_error import IOUError
 from .iou_vm import IOUVM
 
+import logging
+log = logging.getLogger(__name__)
+
 
 class IOU(BaseManager):
 
@@ -79,7 +82,11 @@ class IOU(BaseManager):
         # save the configs when the project is committed
         for vm in self._vms.copy().values():
             if vm.project.id == project.id:
-                vm.save_configs()
+                try:
+                    vm.save_configs()
+                except IOUError as e:
+                    log.warning(e)
+                    continue
 
     def get_application_id(self, vm_id):
         """