diff --git a/transport/src/main/java/io/netty/channel/AdaptiveRecvByteBufAllocator.java b/transport/src/main/java/io/netty/channel/AdaptiveRecvByteBufAllocator.java
index d2456dd25b..93d7a803e9 100644
--- a/transport/src/main/java/io/netty/channel/AdaptiveRecvByteBufAllocator.java
+++ b/transport/src/main/java/io/netty/channel/AdaptiveRecvByteBufAllocator.java
@@ -35,7 +35,8 @@ import static java.lang.Math.min;
 public class AdaptiveRecvByteBufAllocator extends DefaultMaxMessagesRecvByteBufAllocator {
 
     static final int DEFAULT_MINIMUM = 64;
-    static final int DEFAULT_INITIAL = 1024;
+    // Use an initial value that is bigger than the common MTU of 1500
+    static final int DEFAULT_INITIAL = 2048;
     static final int DEFAULT_MAXIMUM = 65536;
 
     private static final int INDEX_INCREMENT = 4;