diff --git a/qa/L0_storage_S3_local/mock_s3_service.py b/qa/L0_storage_S3_local/mock_s3_service.py
new file mode 100644
index 00000000000..61a6152b98e
--- /dev/null
+++ b/qa/L0_storage_S3_local/mock_s3_service.py
@@ -0,0 +1,107 @@
+# Copyright 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import time
+import threading
+from http.server import HTTPServer, BaseHTTPRequestHandler
+
+
+class MockS3Service():
+
+    __address = "localhost"
+    __port = 8080
+
+    def __init__(self):
+        # Test passed when:
+        # - one or more requests are received; and
+        # - all requests do not advertise for HTTP/2.
+        test_results = [0, False]  # [requests received, advertised for HTTP/2]
+
+        class RequestValidator(BaseHTTPRequestHandler):
+            protocol_version = "HTTP/1.1"
+
+            def __CheckRequest(self):
+                # Requests received
+                test_results[0] += 1
+                # Advertised for HTTP/2
+                if "connection" in self.headers:
+                    v = self.headers["connection"]
+                    if "upgrade" in v or "http2" in v:
+                        test_results[1] = True
+                if "upgrade" in self.headers and "h2c" in self.headers[
+                        "upgrade"]:
+                    test_results[1] = True
+                if "http2-settings" in self.headers:
+                    test_results[1] = True
+
+            def do_HEAD(self):
+                self.__CheckRequest()
+                self.send_response(200)
+                self.end_headers()
+
+            def do_GET(self):
+                self.__CheckRequest()
+                self.send_error(404, "Thank you for using the mock s3 service!",
+                                "Your bucket is not found here!")
+
+        self.__test_results = test_results
+        self.__server = HTTPServer((self.__address, self.__port),
+                                   RequestValidator)
+        self.__service_thread = threading.Thread(
+            target=self.__server.serve_forever)
+
+    def __enter__(self):
+        self.__service_thread.start()
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.__server.shutdown()
+        self.__server.server_close()
+        self.__service_thread.join()
+
+    def TestPassed(self):
+        # [requests received, advertised for HTTP/2]
+        return self.__test_results[0] > 0 and not self.__test_results[1]
+
+
+if __name__ == "__main__":
+
+    # Initialize mock service
+    mock_s3_service = MockS3Service()
+
+    # Start service and poll until test passed or timed-out
+    with mock_s3_service:
+        poll_interval = 1  # seconds
+        timeout = 10  # seconds
+        elapsed_time = 0  # seconds
+        while not mock_s3_service.TestPassed() and elapsed_time < timeout:
+            elapsed_time += poll_interval
+            time.sleep(poll_interval)
+
+    # Print the result
+    if mock_s3_service.TestPassed():
+        print("TEST PASSED")
+    else:
+        print("TEST FAILED")
diff --git a/qa/L0_storage_S3_local/test.sh b/qa/L0_storage_S3_local/test.sh
index 27d5e67daa7..7f07fbd24b8 100755
--- a/qa/L0_storage_S3_local/test.sh
+++ b/qa/L0_storage_S3_local/test.sh
@@ -355,10 +355,33 @@ done
 kill $MINIO_PID
 wait $MINIO_PID
 
-if [ $RET -eq 0 ]; then
-  echo -e "\n***\n*** Test Passed\n***"
+# Test the S3 client will not advertise HTTP/2
+TEST_LOG="./http2_advertise_test.log"
+python3 mock_s3_service.py > $TEST_LOG 2>&1 &
+sleep 2  # make sure the mock service has started
+SERVER_LOG="./http2_advertise_test.server.log"
+SERVER_ARGS="--model-repository=s3://localhost:8080/dummy-bucket --exit-timeout-secs=120"
+run_server
+if [ "$SERVER_PID" != "0" ]; then
+    echo -e "\n***\n*** Unexpected server start $SERVER\n***"
+    cat $SERVER_LOG
+    kill $SERVER_PID
+    wait $SERVER_PID
+    RET=1
 else
-  echo -e "\n***\n*** Test Failed\n***"
+    sleep 2  # make sure the mock service has stopped
+    PASSED_MSG="TEST PASSED"
+    if ! grep "$PASSED_MSG" $TEST_LOG; then
+        echo -e "\n***\n*** S3 client HTTP/2 advertise test failed\n***"
+        cat $TEST_LOG
+        RET=1
+    fi
 fi
 
+# Print and return test result
+if [ $RET -eq 0 ]; then
+    echo -e "\n***\n*** Test Passed\n***"
+else
+    echo -e "\n***\n*** Test Failed\n***"
+fi
 exit $RET