diff --git a/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot b/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot
new file mode 100755
index 0000000..9dc9793
--- /dev/null
+++ b/tests/openonu-go-adapter/Voltha_ONUNegativeStateTests.robot
@@ -0,0 +1,125 @@
+# Copyright 2021 - present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+*** Settings ***
+Documentation     Negative test states of ONU Go adapter with ATT workflows only (not for DT/TT workflow!)
+Suite Setup       Setup Suite
+Suite Teardown    Teardown Suite
+Test Setup        Setup
+Test Teardown     Teardown
+Library           Collections
+Library           String
+Library           OperatingSystem
+Library           XML
+Library           RequestsLibrary
+Library           ../../libraries/DependencyLibrary.py
+Resource          ../../libraries/onos.robot
+Resource          ../../libraries/voltctl.robot
+Resource          ../../libraries/voltha.robot
+Resource          ../../libraries/utils.robot
+Resource          ../../libraries/k8s.robot
+Resource          ../../libraries/onu_utilities.robot
+Resource          ../../libraries/bbsim.robot
+Resource          ../../variables/variables.robot
+
+*** Variables ***
+${namespace}      voltha
+${timeout}        300s
+${of_id}          0
+${logical_id}     0
+${has_dataplane}    True
+${external_libs}    True
+${teardown_device}    True
+${scripts}        ../../scripts
+# Per-test logging on failure is turned off by default; set this variable to enable
+${container_log_dir}    ${None}
+# KV Store Prefix
+# example: -v kvstoreprefix:voltha_voltha
+${kvstoreprefix}    voltha_voltha
+# used tech profile, can be passed via the command line too, valid values: default (=1T1GEM), 1T4GEM, 1T8GEM
+# example: -v techprofile:1T4GEM
+${techprofile}    default
+# flag debugmode is used, if true timeout calculation various, can be passed via the command line too
+# example: -v debugmode:True
+${debugmode}    False
+# logging flag to enable Collect Logs, can be passed via the command line too
+# example: -v logging:True
+${logging}    False
+# if True execution will be paused before clean up, only use in case of manual testing, do not use in ci pipeline!
+# example: -v pausebeforecleanup:True
+${pausebeforecleanup}    False
+# if True some outputs to console are done during running tests e.g. long duration flow test
+# example: -v print2console:True
+${print2console}    False
+${data_dir}    ../data
+
+
+*** Test Cases ***
+ONU Negative State Test
+    [Documentation]    Validates the ONU Go adapter states will never leave starting-openomci
+    ...                Due to a 'omci-response-rate' lower than 8 more OMCI messages will be through away by BBSIM than
+    ...                repeated by openonu-go-adapter. So ONU will never leave starting-openomci state.
+    ...                Timeout has to set at least to 300s (or more)
+    [Tags]    NegativeStateTestOnuGo
+    [Setup]    Run Keywords    Start Logging    ONUNegativeStateTest
+    ...    AND    Setup
+    # Suite Variable will be overwritten by Teardown of Current State Test All Onus
+    Set Suite Variable    ${StateTestAllONUs}    True
+    ${seconds}=    Convert Time    ${timeout}
+    ${seconds}=    Convert To String    ${seconds}
+    ${seconds}=    Get Substring    ${seconds}    0    -2
+    FOR    ${I}    IN RANGE    ${seconds}
+        Sleep    1s
+        Current State Test All Onus    starting-openomci    timeout=1x
+        Exit For Loop If    not ${StateTestAllONUs}
+    END
+    [Teardown]    Run Keywords    Run Keyword If    ${logging}    Collect Logs
+    ...    AND    Stop Logging    ONUStateTest
+
+
+*** Keywords ***
+Setup Suite
+    [Documentation]    Set up the test suite
+    ${LogInfo}=    Catenate
+    ...    \r\nPassed arguments:
+    ...    techprofile:${techprofile},
+    ...    debugmode:${debugmode}, logging:${logging}, pausebeforecleanup:${pausebeforecleanup},
+    ...    print2console:${print2console}
+    Log    ${LogInfo}    console=yes
+    Common Test Suite Setup
+    ${techprofile}=    Set Variable If    "${techprofile}"=="1T1GEM"    default    ${techprofile}
+    Set Suite Variable    ${techprofile}
+    Run Keyword If    "${techprofile}"=="default"   Log To Console    \nTechProfile:default (1T1GEM)
+    ...    ELSE IF    "${techprofile}"=="1T4GEM"    Set Tech Profile    1T4GEM
+    ...    ELSE IF    "${techprofile}"=="1T8GEM"    Set Tech Profile    1T8GEM
+    ...    ELSE    Fail    The TechProfile (${techprofile}) is not valid!
+    ${onos_ssh_connection}    Open ONOS SSH Connection    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}
+    Set Suite Variable  ${onos_ssh_connection}
+    # delete etcd MIB Template Data
+    Delete MIB Template Data
+    # delete etcd onu data
+    Delete ONU Go Adapter ETCD Data    validate=True
+
+Teardown Suite
+    [Documentation]    Replaces the Suite Teardown in utils.robot.
+    ...    Cleans up and checks all ONU ports disabled in ONOS.
+    ...    Furthermore gives the possibility to pause the execution.
+    Run Keyword If    ${pausebeforecleanup}    Import Library    Dialogs
+    Run Keyword If    ${pausebeforecleanup}    Pause Execution    Press OK to continue with clean up!
+    Run Keyword If    ${pausebeforecleanup}    Log    Teardown will be continued...    console=yes
+    Run Keyword If    ${teardown_device}    Delete All Devices and Verify
+    Wait Until Keyword Succeeds    ${timeout}    1s    Validate Onu Data In Etcd    0    ${kvstoreprefix}    without_pm_data=False
+    Wait for Ports in ONOS for all OLTs      ${onos_ssh_connection}  0   BBSM    ${timeout}
+    Close All ONOS SSH Connections
+    Remove Tech Profile