diff --git a/redfish/managers/test_managers_bmc.robot b/redfish/managers/test_managers_bmc.robot
index 4ac9e5e..a19a12b 100644
--- a/redfish/managers/test_managers_bmc.robot
+++ b/redfish/managers/test_managers_bmc.robot
@@ -204,6 +204,7 @@
 Update NTP Test Initial Status
     [Documentation]  Update the initial status of NTP.
 
+    Redfish.Login
     ${original_ntp}=  Redfish.Get Attribute  ${REDFISH_NW_PROTOCOL_URI}  NTP
     Set Suite Variable  ${original_ntp}
 
@@ -212,6 +213,7 @@
     [Documentation]  Set NTP service inactive.
     [Arguments]  ${state}
 
+    Redfish.Login
     Redfish.Patch  ${REDFISH_NW_PROTOCOL_URI}  body={'NTP':{'ProtocolEnabled': ${state}}}
     ...  valid_status_codes=[${HTTP_OK}, ${HTTP_NO_CONTENT}]