diff --git a/ansible/roles/prechecks/tasks/service_checks.yml b/ansible/roles/prechecks/tasks/service_checks.yml
index e11a252f38..d40d13b8da 100644
--- a/ansible/roles/prechecks/tasks/service_checks.yml
+++ b/ansible/roles/prechecks/tasks/service_checks.yml
@@ -31,3 +31,11 @@
       Kolla. Please disable it before proceeding.
   when:
     - nscd_status.rc == 0
+
+- name: Checking internal and external VIP addresses differ
+  run_once: True
+  local_action: fail msg='kolla_external_vip_address and kolla_internal_vip_address must not be the same when TLS is enabled'
+  changed_when: false
+  when:
+    - kolla_enable_tls_external | bool
+    - kolla_external_vip_address == kolla_internal_vip_address