change in region.conf file
diff --git a/maas/files/regiond.conf b/maas/files/regiond.conf
index 15728f8..0a652ef 100644
--- a/maas/files/regiond.conf
+++ b/maas/files/regiond.conf
@@ -9,4 +9,4 @@
 database_name: {{ region.database.name }}
 database_pass: {{ region.database.password }}
 database_user: {{ region.database.username }}
-maas_url: http://{{ region.bind.host }}:{{ region.bind.port }}/MAAS
+maas_url: http://{{ region.bind.host }}/MAAS