diff --git a/gns3server/compute/docker/__init__.py b/gns3server/compute/docker/__init__.py
index fc488a93a..9dfdad8bb 100644
--- a/gns3server/compute/docker/__init__.py
+++ b/gns3server/compute/docker/__init__.py
@@ -100,14 +100,17 @@ class Docker(BaseManager):
         """
         data = json.dumps(data)
         url = "http://docker/" + path
-        response = yield from aiohttp.request(
-            method,
-            url,
-            connector=(yield from self.connector()),
-            params=params,
-            data=data,
-            headers={"content-type": "application/json", },
-        )
+        try:
+            response = yield from aiohttp.request(
+                method,
+                url,
+                connector=(yield from self.connector()),
+                params=params,
+                data=data,
+                headers={"content-type": "application/json", },
+            )
+        except aiohttp.ClientResponseError as e:
+            raise DockerError("Docker has returned an error: {}".format(str(e)))
         if response.status >= 300:
             body = yield from response.read()
             try:
diff --git a/gns3server/compute/dynamips/nodes/router.py b/gns3server/compute/dynamips/nodes/router.py
index f3d0bc808..fc3bc00d9 100644
--- a/gns3server/compute/dynamips/nodes/router.py
+++ b/gns3server/compute/dynamips/nodes/router.py
@@ -1545,7 +1545,14 @@ class Router(BaseNode):
         """
 
         if self.startup_config or self.private_config:
+
             module_workdir = self.project.module_working_directory(self.manager.module_name.lower())
+            try:
+                config_path = os.path.join(module_workdir, "configs")
+                os.makedirs(config_path, exist_ok=True)
+            except OSError as e:
+                raise DynamipsError("Could could not create configuration directory {}: {}".format(config_path, e))
+
             startup_config_base64, private_config_base64 = yield from self.extract_config()
             if startup_config_base64:
                 if not self.startup_config: