diff --git a/src/test/cord-api/Tests/WorkflowValidations/ATT_Test001.robot b/src/test/cord-api/Tests/WorkflowValidations/ATT_Test001.robot
index 33f1264..dc36226 100644
--- a/src/test/cord-api/Tests/WorkflowValidations/ATT_Test001.robot
+++ b/src/test/cord-api/Tests/WorkflowValidations/ATT_Test001.robot
@@ -395,6 +395,7 @@
     Wait Until Keyword Succeeds    120s    10s    Check Remote System Reachability    False    ${olt_ip}
     Wait Until Keyword Succeeds    120s    10s    Check Remote System Reachability    True    ${olt_ip}
     Wait Until Keyword Succeeds    120s    10s    Openolt is Up    ${olt_ip}    ${olt_user}    ${olt_pass}
+    Sleep    15s
 
 Create Whitelist
     ${AttWhiteListDict}=    utils.listToDict    ${AttWhiteListList}    0