diff --git a/config.yaml b/config.yaml
index 677b62e..44de013 100644
--- a/config.yaml
+++ b/config.yaml
@@ -17,7 +17,6 @@ options:
     description: Public SSH key of PLUMgrid LCM which is running PG-Tools.
   mgmt-interface:
     type: string
-    default: 'juju-br0'
     description: The interface connected to PLUMgrid Managment network.
   fabric-interfaces:
     default: 'MANAGEMENT'
diff --git a/hooks/pg_dir_hooks.py b/hooks/pg_dir_hooks.py
index add2a4d..b5f91ff 100755
--- a/hooks/pg_dir_hooks.py
+++ b/hooks/pg_dir_hooks.py
@@ -161,11 +161,14 @@ def start():
     '''
     if config('plumgrid-license-key') is not None:
         count = 0
-        while (count < 10):
+        while (count < 15):
             if post_pg_license():
                 break
             count += 1
             time.sleep(15)
+        if count == 15:
+            raise ValueError("Error occurred while posting plumgrid license"
+                             "key. Please check plumgrid services.")
 
 
 @hooks.hook('upgrade-charm')