diff --git a/utils/os_client.py b/utils/os_client.py
index aa51732..6694813 100644
--- a/utils/os_client.py
+++ b/utils/os_client.py
@@ -398,7 +398,9 @@
                 'project_id': project_id
             }
         }
-        if mtu != 'default':
+        # in TF2011 we cannot set MTU while creating the net: 400 Bad request
+        # error can happen with 'mtu' field, so we update mtu of ports later
+        if (mtu != 'default') and (not self.is_cloud_tf()):
             try:
                 net_body['network']['mtu'] = int(mtu)
             except ValueError as e: