diff --git a/arch/arm/src/samv7/sam_emac.c b/arch/arm/src/samv7/sam_emac.c
index b173fd8290..97d685ada5 100644
--- a/arch/arm/src/samv7/sam_emac.c
+++ b/arch/arm/src/samv7/sam_emac.c
@@ -1318,7 +1318,7 @@ static int sam_transmit(struct sam_emac_s *priv, int qid)
                         (uintptr_t)txdesc->addr + dev->d_len);
     }
 
-  /* Update TX descriptor status. */
+  /* Update TX descriptor status (with USED=0). */
 
   status = dev->d_len | EMACTXD_STA_LAST;
   if (txhead == priv->xfrq[qid].ntxbuffers - 1)
@@ -1347,6 +1347,13 @@ static int sam_transmit(struct sam_emac_s *priv, int qid)
   regval |= EMAC_NCR_TSTART;
   sam_putreg(priv, SAM_EMAC_NCR_OFFSET, regval);
 
+  /* REVISIT: Sometimes TSTART is missed?  In this case, the symptom is
+   * that the packet is not sent until the next transfer when TXSTART
+   * is set again.
+   */
+
+  sam_putreg(priv, SAM_EMAC_NCR_OFFSET, regval);
+
   /* Setup the TX timeout watchdog (perhaps restarting the timer) */
 
   (void)wd_start(priv->txtimeout, SAM_TXTIMEOUT, sam_txtimeout_expiry, 1,
@@ -1515,7 +1522,7 @@ static void sam_dopoll(struct sam_emac_s *priv, int qid)
 
 static int sam_recvframe(struct sam_emac_s *priv, int qid)
 {
-  struct emac_rxdesc_s *rxdesc;
+  volatile struct emac_rxdesc_s *rxdesc;
   struct net_driver_s *dev;
   const uint8_t *src;
   uint8_t  *dest;
diff --git a/configs/samv71-xult/README.txt b/configs/samv71-xult/README.txt
index d4bd5b1da6..ba8526706b 100644
--- a/configs/samv71-xult/README.txt
+++ b/configs/samv71-xult/README.txt
@@ -49,7 +49,7 @@ Board Features
   - Embedded Debugger with Data Gateway Interface and Virtual COM port (CDC)
   - External power input (5-14V) or USB powered
 
-See the Atmel webite for further information about this board:
+See the Atmel website for further information about this board:
 
   - http://www.atmel.com/tools/atsamv71-xult.aspx
 
@@ -475,6 +475,7 @@ Selecting the GMAC peripheral
 
   Networking Support
     CONFIG_NET=y                         : Enable Neworking
+    CONFIG_NET_NOINTS=y                  : Use the work queue, not interrupts for processing
     CONFIG_NET_SOCKOPTS=y                : Enable socket operations
     CONFIG_NET_ETH_MTU=562               : Maximum packet size (MTU) 1518 is more standard
     CONFIG_NET_ETH_TCP_RECVWNDO=562      : Should be the same as CONFIG_NET_ETH_MTU
@@ -801,7 +802,7 @@ Configuration sub-directories
        long, perhaps minutes, if the network cable is not connected!
 
        If fast boot times are required, you need to perform asynchronous
-       network initializatino as described about under "Network Initialization
+       network initialization as described about under "Network Initialization
        Thread"
 
     5. SDRAM is NOT enabled in this configuration.
@@ -824,7 +825,7 @@ Configuration sub-directories
 
     7. TWIHS0 is used to support 256 byte non-volatile storage.  This EEPROM
        holds the assigned MAC address which is necessary for networking. The
-       EEPROM is also avaiable for storage of configuration data using the
+       EEPROM is also available for storage of configuration data using the
        MTD configuration as described above under the heading, "MTD
        Configuration Data".
 
@@ -1048,4 +1049,3 @@ Configuration sub-directories
 
        Stack sizes are also large to simplify the bring-up and should be
        tuned for better memory usages.
-
diff --git a/configs/samv71-xult/netnsh/defconfig b/configs/samv71-xult/netnsh/defconfig
index e4cf9aae98..31f55bb9aa 100644
--- a/configs/samv71-xult/netnsh/defconfig
+++ b/configs/samv71-xult/netnsh/defconfig
@@ -51,9 +51,9 @@ CONFIG_ARCH_HAVE_STACKCHECK=y
 # CONFIG_STACK_COLORATION is not set
 # CONFIG_DEBUG_SYMBOLS is not set
 CONFIG_ARCH_HAVE_CUSTOMOPT=y
-CONFIG_DEBUG_NOOPT=y
+# CONFIG_DEBUG_NOOPT is not set
 # CONFIG_DEBUG_CUSTOMOPT is not set
-# CONFIG_DEBUG_FULLOPT is not set
+CONFIG_DEBUG_FULLOPT=y
 
 #
 # System Type
@@ -647,7 +647,7 @@ CONFIG_UART3_2STOP=0
 CONFIG_ARCH_HAVE_NET=y
 CONFIG_ARCH_HAVE_PHY=y
 CONFIG_NET=y
-# CONFIG_NET_NOINTS is not set
+CONFIG_NET_NOINTS=y
 # CONFIG_NET_PROMISCUOUS is not set
 
 #