diff --git a/configs/b-l475e-iot01a/README.txt b/configs/b-l475e-iot01a/README.txt
index cf59a99ec0..fe8f1ce5a9 100644
--- a/configs/b-l475e-iot01a/README.txt
+++ b/configs/b-l475e-iot01a/README.txt
@@ -593,5 +593,20 @@ Configuration sub-directories
         I would say it is functional but  fragile in this usage, but probably
         robust in a less busy environment.
 
-     2017-08-08:  Added and verified broadcast packet transfers using the
-        hub-based broadcast UDP client.
+     2017-08-08:  Added broadcast packet transfers using the hub-based
+        broadcast UDP client.  This appears to be a problem the HC06
+        compression/decompression.  The decompression logic comes up with
+        the destination address as ff02::ff00:00fe:3500 (which the receiving
+        node address is 37) instead of ff02::0001.  It is then out of sync
+        with the IPHC headers and is unable to uncompress the rest of the
+        packet correction.
+
+        Trying again with HC1 compression, I see other isses.  The first
+        frame is received correctly, the following frames have an incorrect
+        packet length.
+
+        There is probably another issue related to broadcast TX setup: If
+        we are sending to the multicast or broadcast address, should we
+        not also disable ACKs, retries, and RX timeouts?  What will happen
+        if multiple radios ACK?  At a minimum it could keep the driver
+        unnecessarily busy.
diff --git a/drivers/wireless/spirit/drivers/spirit_netdev.c b/drivers/wireless/spirit/drivers/spirit_netdev.c
index b8741db9b7..1ddf2733b7 100644
--- a/drivers/wireless/spirit/drivers/spirit_netdev.c
+++ b/drivers/wireless/spirit/drivers/spirit_netdev.c
@@ -1121,11 +1121,28 @@ static void spirit_interrupt_work(FAR void *arg)
     }
 
   if (irqstatus.IRQ_TX_FIFO_ERROR != 0 ||
-      irqstatus.IRQ_MAX_RE_TX_REACH != 0)
+      irqstatus.IRQ_MAX_RE_TX_REACH != 0 ||
+      irqstatus.IRQ_MAX_BO_CCA_REACH != 0)
     {
-      wlwarn("WARNING: Tx FIFO Error/Max retries\n");
+#ifdef CONFIG_DEBUG_WIRELESS_WARN
+      wlwarn("WARNING: Tx Error\n");
+      if (irqstatus.IRQ_TX_FIFO_ERROR != 0)
+        {
+          wlwarn("         Tx FIFO Error\n");
+        }
 
-      /* Discard TX data */
+      if (irqstatus.IRQ_MAX_RE_TX_REACH != 0)
+        {
+          wlwarn("         Max retries reached\n");
+        }
+
+      if (irqstatus.IRQ_MAX_BO_CCA_REACH != 0)
+        {
+          wlwarn("         Max backoff reached\n");
+        }
+#endif
+
+      /* Discard TX data in the FIFO */
 
       DEBUGVERIFY(spirit_command(spirit, COMMAND_FLUSHTXFIFO));
       irqstatus.IRQ_TX_DATA_SENT = 0;
@@ -2519,20 +2536,6 @@ int spirit_hw_initialize(FAR struct spirit_driver_s *priv,
       return ret;
     }
 
-  ret = spirit_irq_enable(spirit, TX_FIFO_ERROR, S_ENABLE);
-  if (ret < 0)
-    {
-      wlerr("ERROR: Enable TX_FIFO_ERROR failed: %d\n", ret);
-      return ret;
-    }
-
-  ret = spirit_irq_enable(spirit, RX_FIFO_ERROR, S_ENABLE);
-  if (ret < 0)
-    {
-      wlerr("ERROR: Enable RX_FIFO_ERROR failed: %d\n", ret);
-      return ret;
-    }
-
 #ifdef CONFIG_SPIRIT_FIFOS
 #if CONFIG_SPIRIT_PKTLEN > SPIRIT_MAX_FIFO_LEN
   ret = spirit_irq_enable(spirit, TX_FIFO_ALMOST_EMPTY, S_ENABLE);
@@ -2551,6 +2554,27 @@ int spirit_hw_initialize(FAR struct spirit_driver_s *priv,
     }
 #endif
 
+  ret = spirit_irq_enable(spirit, TX_FIFO_ERROR, S_ENABLE);
+  if (ret < 0)
+    {
+      wlerr("ERROR: Enable TX_FIFO_ERROR failed: %d\n", ret);
+      return ret;
+    }
+
+  ret = spirit_irq_enable(spirit, RX_FIFO_ERROR, S_ENABLE);
+  if (ret < 0)
+    {
+      wlerr("ERROR: Enable RX_FIFO_ERROR failed: %d\n", ret);
+      return ret;
+    }
+
+  ret = spirit_irq_enable(spirit, MAX_BO_CCA_REACH, S_ENABLE);
+  if (ret < 0)
+    {
+      wlerr("ERROR: Enable MAX_BO_CCA_REACH failed: %d\n", ret);
+      return ret;
+    }
+
   /* Configure Spirit1 */
 
   wlinfo("Configure Spriti1\n");