diff --git a/gns3server/compute/qemu/qemu_vm.py b/gns3server/compute/qemu/qemu_vm.py
index b099becb6..ce538d7f6 100644
--- a/gns3server/compute/qemu/qemu_vm.py
+++ b/gns3server/compute/qemu/qemu_vm.py
@@ -2674,7 +2674,6 @@ class QemuVM(BaseNode):
         command.extend(self._aux_options())
         command.extend(self._monitor_options())
         command.extend(await self._network_options())
-        command.extend((await self._network_options()))
         # bios options must be last to have predictable NIC numbering, see https://github.com/GNS3/gns3-server/issues/2838
         command.extend(self._bios_option())
         if self.on_close != "save_vm_state":
diff --git a/tests/compute/docker/test_docker_vm.py b/tests/compute/docker/test_docker_vm.py
index 92aa661ab..bc722423e 100644
--- a/tests/compute/docker/test_docker_vm.py
+++ b/tests/compute/docker/test_docker_vm.py
@@ -1883,7 +1883,7 @@ async def test_memory(compute_project, manager):
             })
         assert vm._cid == "e90e34656806"
 
-
+@pytest.mark.asyncio
 async def test_stop_exited_container_no_stop_query(vm):
 
     vm._ubridge_hypervisor = None
diff --git a/tests/controller/test_import_project.py b/tests/controller/test_import_project.py
index 1cd77dbf0..e0cbfa1b1 100644
--- a/tests/controller/test_import_project.py
+++ b/tests/controller/test_import_project.py
@@ -21,7 +21,6 @@ import uuid
 import json
 import zipfile
 import pytest
-import aiohttp
 
 from pathlib import Path
 from tests.utils import asyncio_patch, AsyncioMagicMock
@@ -29,6 +28,7 @@ from unittest.mock import patch, MagicMock
 
 from gns3server.utils.asyncio import aiozipstream
 from gns3server.controller.project import Project
+from gns3server.controller.controller_error import ControllerError
 from gns3server.controller.export_project import export_project
 from gns3server.controller.import_project import import_project, _move_files_to_compute
 from gns3server.version import __version__
@@ -189,11 +189,12 @@ async def test_import_project_containing_absolute_symlink(controller, export_pro
     symlink_target = "/tmp/anywhere"
     zip_path = await export_project_with_symlink(symlink_target)
 
-    with pytest.raises(aiohttp.web.HTTPConflict):
+    with pytest.raises(ControllerError):
         with open(zip_path, "rb") as f:
             await import_project(controller, project_id, f)
 
 
+@pytest.mark.asyncio
 async def test_import_project_containing_escaping_symlink(controller, export_project_with_symlink):
     """
     Test importing a project containing a symlink that escapes the project directory.
@@ -204,11 +205,12 @@ async def test_import_project_containing_escaping_symlink(controller, export_pro
     symlink_target = "../../../../symlink_target"
     zip_path = await export_project_with_symlink(symlink_target)
 
-    with pytest.raises(aiohttp.web.HTTPConflict):
+    with pytest.raises(ControllerError):
         with open(zip_path, "rb") as f:
             await import_project(controller, project_id, f)
 
 
+@pytest.mark.asyncio
 async def test_import_upgrade(tmpdir, controller):
     """
     Topology made for previous GNS3 version are upgraded during the process
diff --git a/tests/controller/test_project.py b/tests/controller/test_project.py
index c4a919b4a..d099c019a 100644
--- a/tests/controller/test_project.py
+++ b/tests/controller/test_project.py
@@ -713,6 +713,7 @@ async def test_delete_does_not_start_nodes(project):
     assert not project.start_all.called
 
 
+@pytest.mark.asyncio
 async def test_dump(projects_dir):
 
     directory = projects_dir