[VOL-2634] adding new tests to the nightly jobs and fix issues

Change-Id: I86bebc2a078fb11cefbea3b4beadcb219ac92ac2
diff --git a/tests/functional/Voltha_PODTests.robot b/tests/functional/Voltha_PODTests.robot
index 7af9978..c8c79e2 100644
--- a/tests/functional/Voltha_PODTests.robot
+++ b/tests/functional/Voltha_PODTests.robot
@@ -360,7 +360,7 @@
     Should Be Equal As Integers    ${rc}    0
     Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s    Test Empty Device List
 
-Test Disable and Enable ONU and check authentication
+Validate authentication on a disabled ONU
     [Documentation]    Assuming that test1 was executed where all the ONUs are authenticated/DHCP/pingable
     ...    Perform disable on the ONUs and validate that the authentication do not succeed
     ...    Perform enable on the ONUs and validate that authentication successful