diff --git a/gns3server/compute/builtin/nodes/cloud.py b/gns3server/compute/builtin/nodes/cloud.py
index d0979d92..112f8e86 100644
--- a/gns3server/compute/builtin/nodes/cloud.py
+++ b/gns3server/compute/builtin/nodes/cloud.py
@@ -188,7 +188,7 @@ class Cloud(BaseNode):
         if port_info["type"] in ("ethernet", "tap"):
 
             if sys.platform.startswith("win"):
-                yield from self._add_ubridge_ethernet_connection(bridge_name, port_info["interface"])
+                yield from self._add_ubridge_ethernet_connection(bridge_name, port_info["interface"], block_host_traffic=False)
 
             else: