bug fix in siab tests

Change-Id: I5bbdefbe16f88e1270d13a4391fae670fe90b7ab
diff --git a/src/test/cord-api/Tests/WorkflowValidations/SIAB.robot b/src/test/cord-api/Tests/WorkflowValidations/SIAB.robot
index 9353f43..268e24a 100644
--- a/src/test/cord-api/Tests/WorkflowValidations/SIAB.robot
+++ b/src/test/cord-api/Tests/WorkflowValidations/SIAB.robot
@@ -300,8 +300,8 @@
     Wait Until Keyword Succeeds    60s    15s    Validate ONU States    ACTIVE    ENABLED    ${onu_device}
     Wait Until Keyword Succeeds    60s    2s    Validate ATT Workflow Driver SI    ENABLED    AWAITING    ${onu_device}
     Validate Authentication    True    eth0    wpa_supplicant.conf    ${kube_node_ip}     ${local_user}    ${local_pass}    K8S    ${RG_CONTAINER}
-    Wait Until Keyword Succeeds    60s    2s    Validate ATT Workflow Driver SI    ENABLED    AWAITING    ${onu_device}
-    Validate DHCP and Ping    False    False    eth0    ${s_tag}    ${c_tag}    ${dst_host_ip}    ${kube_node_ip}    ${local_user}    ${local_pass}    K8S    ${RG_CONTAINER}
+    Wait Until Keyword Succeeds    60s    2s    Validate ATT Workflow Driver SI    ENABLED    APPROVED    ${onu_device}
+    Run Keyword And Ignore Error    Validate DHCP and Ping    False    False    eth0    ${s_tag}    ${c_tag}    ${dst_host_ip}    ${kube_node_ip}    ${local_user}    ${local_pass}    K8S    ${RG_CONTAINER}
     Restart RG Pod
     Create Subscriber
     Reset ONU