diff --git a/tests/regression/roles/sonic_interfaces/defaults/main.yml b/tests/regression/roles/sonic_interfaces/defaults/main.yml
index 9eb71dce3..96d94127c 100644
--- a/tests/regression/roles/sonic_interfaces/defaults/main.yml
+++ b/tests/regression/roles/sonic_interfaces/defaults/main.yml
@@ -57,7 +57,7 @@ tests:
         description: ansible Ethernet104
         mtu: 5222
         enabled: true
-        unreliable_los: UNRELIABLE_LOS_MODE_AUTO
+        unreliable_los: UNRELIABLE_LOS_MODE_ON
   - name: test_case_03
     description: Configure interface parameter speed
     state: merged