diff --git a/src/core/netif.c b/src/core/netif.c
index 87ba15bb..3a41edcd 100644
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -692,6 +692,8 @@ void
 netif_set_down(struct netif *netif)
 {
   if (netif->flags & NETIF_FLAG_UP) {
+    netif_invoke_ext_callback(netif, LWIP_NSC_STATUS_CHANGED, 0, NULL);
+
     netif->flags &= ~NETIF_FLAG_UP;
     MIB2_COPY_SYSUPTIME_TO(&netif->ts);
 
@@ -706,7 +708,6 @@ netif_set_down(struct netif *netif)
 #endif /* LWIP_IPV6 */
 
     NETIF_STATUS_CALLBACK(netif);
-    netif_invoke_ext_callback(netif, LWIP_NSC_STATUS_CHANGED, 0, NULL);
   }
 }
 
diff --git a/src/include/lwip/netif.h b/src/include/lwip/netif.h
index 519acf13..be0ba9b6 100644
--- a/src/include/lwip/netif.h
+++ b/src/include/lwip/netif.h
@@ -512,13 +512,17 @@ struct netif* netif_get_by_index(u8_t idx);
  */
 typedef enum
 {
-  /** netif was added. num: 0; arg: NULL */
+  /** netif was added. num: 0; arg: NULL\n
+   * Called AFTER netif was added. */
   LWIP_NSC_NETIF_ADDED,
-  /** netif was removed. num: 0; arg: NULL */
+  /** netif was removed. num: 0; arg: NULL\n
+   * Called BEFORE netif is removed. */
   LWIP_NSC_NETIF_REMOVED,
   /** link changed. num: 1 up, 0 down; arg: NULL */
   LWIP_NSC_LINK_CHANGED,
-  /** netif administrative status changed. num: 1 up, 0 down; arg: NULL */
+  /** netif administrative status changed. num: 1 up, 0 down; arg: NULL\n
+   * up is called AFTER netif is set up.\n
+   * down is called BEFORE the netif is actually set down. */
   LWIP_NSC_STATUS_CHANGED,
   /** IPv4 address has changed. num: 0; arg is ip_addr_t* old address */
   LWIP_NSC_IPV4_ADDRESS_CHANGED,