diff --git a/src/main/java/org/jboss/netty/channel/socket/nio/NioDatagramChannel.java b/src/main/java/org/jboss/netty/channel/socket/nio/NioDatagramChannel.java
index 734d193338..8719712d88 100644
--- a/src/main/java/org/jboss/netty/channel/socket/nio/NioDatagramChannel.java
+++ b/src/main/java/org/jboss/netty/channel/socket/nio/NioDatagramChannel.java
@@ -298,7 +298,7 @@ class NioDatagramChannel extends AbstractChannel
                 if (newWriteBufferSize == 0 || newWriteBufferSize < lowWaterMark) {
                     if (newWriteBufferSize + messageSize >= lowWaterMark) {
                         highWaterMarkCounter.decrementAndGet();
-                        if (!notifying.get()) {
+                        if (isBound() && !notifying.get()) {
                             notifying.set(Boolean.TRUE);
                             fireChannelInterestChanged(NioDatagramChannel.this);
                             notifying.set(Boolean.FALSE);
diff --git a/src/main/java/org/jboss/netty/channel/socket/nio/NioSocketChannel.java b/src/main/java/org/jboss/netty/channel/socket/nio/NioSocketChannel.java
index a4031c7555..3060836b62 100644
--- a/src/main/java/org/jboss/netty/channel/socket/nio/NioSocketChannel.java
+++ b/src/main/java/org/jboss/netty/channel/socket/nio/NioSocketChannel.java
@@ -242,7 +242,7 @@ class NioSocketChannel extends AbstractChannel
                 if (newWriteBufferSize == 0 || newWriteBufferSize < lowWaterMark) {
                     if (newWriteBufferSize + messageSize >= lowWaterMark) {
                         highWaterMarkCounter.decrementAndGet();
-                        if (!notifying.get()) {
+                        if (isConnected() && !notifying.get()) {
                             notifying.set(Boolean.TRUE);
                             fireChannelInterestChanged(NioSocketChannel.this);
                             notifying.set(Boolean.FALSE);