diff --git a/voltha/adapters/adtran_olt/adtran_device_handler.py b/voltha/adapters/adtran_olt/adtran_device_handler.py
index 60522b1..9c2b9fa 100644
--- a/voltha/adapters/adtran_olt/adtran_device_handler.py
+++ b/voltha/adapters/adtran_olt/adtran_device_handler.py
@@ -39,8 +39,8 @@
 _ = third_party
 
 DEFAULT_MULTICAST_VLAN = 4000
-DEFAULT_UTILITY_VLAN = 4094
 BROADCOM_UNTAGGED_VLAN = 4091                     # SEBA - For BBWF demo (BroadCom Default VLAN)
+DEFAULT_UTILITY_VLAN = BROADCOM_UNTAGGED_VLAN
 DEFAULT_UNTAGGED_VLAN = BROADCOM_UNTAGGED_VLAN    # if RG does not send priority tagged frames
 
 _DEFAULT_RESTCONF_USERNAME = ""
diff --git a/voltha/adapters/adtran_olt/adtran_olt.py b/voltha/adapters/adtran_olt/adtran_olt.py
index 63810b9..eaee130 100644
--- a/voltha/adapters/adtran_olt/adtran_olt.py
+++ b/voltha/adapters/adtran_olt/adtran_olt.py
@@ -52,7 +52,7 @@
         self.descriptor = Adapter(
             id=self.name,
             vendor='Adtran Inc.',
-            version='1.23',
+            version='1.24',
             config=AdapterConfig(log_level=LogLevel.INFO)
         )
         log.debug('adtran_olt.__init__', adapter_agent=adapter_agent)
diff --git a/voltha/adapters/adtran_olt/net/pio_zmq.py b/voltha/adapters/adtran_olt/net/pio_zmq.py
index 2fd4048..6b57295 100644
--- a/voltha/adapters/adtran_olt/net/pio_zmq.py
+++ b/voltha/adapters/adtran_olt/net/pio_zmq.py
@@ -17,7 +17,7 @@
 from adtran_zmq import AdtranZmqClient
 from enum import IntEnum
 
-DEFAULT_PIO_TCP_PORT = 5657
+DEFAULT_PIO_TCP_PORT = 5555
 
 
 class PioClient(AdtranZmqClient):
diff --git a/voltha/adapters/adtran_onu/adtran_onu.py b/voltha/adapters/adtran_onu/adtran_onu.py
index ba1384f..539a6b3 100755
--- a/voltha/adapters/adtran_onu/adtran_onu.py
+++ b/voltha/adapters/adtran_onu/adtran_onu.py
@@ -40,7 +40,7 @@
                                                device_handler_class=AdtranOnuHandler,
                                                name='adtran_onu',
                                                vendor='Adtran Inc.',
-                                               version='1.16',
+                                               version='1.17',
                                                device_type='adtran_onu',
                                                vendor_id='ADTN',
                                                accepts_add_remove_flow_updates=False),  # TODO: Support flow-mods
diff --git a/voltha/adapters/adtran_onu/omci/adtn_mib_sync.py b/voltha/adapters/adtran_onu/omci/adtn_mib_sync.py
index 0bd7376..50494e6 100644
--- a/voltha/adapters/adtran_onu/omci/adtn_mib_sync.py
+++ b/voltha/adapters/adtran_onu/omci/adtn_mib_sync.py
@@ -20,10 +20,10 @@
     """
     OpenOMCI MIB Synchronizer state machine for Adtran ONUs
     """
-    ADTN_RESYNC_DELAY = 60     # Periodically force a resync
+    ADTN_RESYNC_DELAY = 120     # Periodically force a resync (lower for debugging)
+    ADTN_AUDIT_DELAY = 0        # Disabled until after BBWF
 
-    def __init__(self, agent, device_id, mib_sync_tasks, db,
-                 advertise_events=False):
+    def __init__(self, agent, device_id, mib_sync_tasks, db, advertise_events=False):
         """
         Class initialization
 
@@ -35,11 +35,7 @@
         """
         super(AdtnMibSynchronizer, self).__init__(agent, device_id, mib_sync_tasks, db,
                                                   advertise_events=advertise_events,
-                                                  # states=MibSynchronizer.DEFAULT_STATES,
-                                                  # transitions=MibSynchronizer.DEFAULT_TRANSITIONS,
-                                                  # initial_state='disabled',
-                                                  # timeout_delay=MibSynchronizer.DEFAULT_TIMEOUT_RETRY,
-                                                  # audit_delay=MibSynchronizer.DEFAULT_AUDIT_DELAY,
+                                                  audit_delay=AdtnMibSynchronizer.ADTN_AUDIT_DELAY,
                                                   resync_delay=AdtnMibSynchronizer.ADTN_RESYNC_DELAY)
         self._omci_managed = False      # TODO: Look up model number/check handler