Minor Fixes to tests

Change-Id: I7ccc4b2f7bee7d333efdbc23b0e7b47b8b244b6e
diff --git a/libraries/utils.robot b/libraries/utils.robot
index 6aab95a..e776ed5 100644
--- a/libraries/utils.robot
+++ b/libraries/utils.robot
@@ -199,6 +199,7 @@
     #validate olt states
     Wait Until Keyword Succeeds    ${timeout}    5s
     ...    Validate OLT Device    PREPROVISIONED    UNKNOWN    UNKNOWN    ${EMPTY}    ${olt_device_id}
+    Sleep    5s
     Enable Device    ${olt_device_id}
     Wait Until Keyword Succeeds    ${timeout}    5s
     ...    Validate OLT Device    ENABLED    ACTIVE    REACHABLE    ${olt_serial_number}