Paper/nms-patches/ServerConnection.patch

--- a/net/minecraft/server/ServerConnection.java
+++ b/net/minecraft/server/ServerConnection.java
@@ -77,10 +77,20 @@
                     channel.pipeline().addLast("packet_handler", networkmanager);
                     networkmanager.setPacketListener(new HandshakeListener(ServerConnection.this.e, networkmanager));
                 }
-            }).group((EventLoopGroup) lazyinitvar.a()).localAddress(inetaddress, i)).bind().syncUninterruptibly());
+            }).group((EventLoopGroup) lazyinitvar.a()).localAddress(inetaddress, i)).option(ChannelOption.AUTO_READ, false).bind().syncUninterruptibly()); // CraftBukkit
         }
     }
 
+    // CraftBukkit start
+    public void acceptConnections() {
+        synchronized (this.listeningChannels) {
+            for (ChannelFuture future : this.listeningChannels) {
+                future.channel().config().setAutoRead(true);
+            }
+        }
+    }
+    // CraftBukkit end
+
     public void b() {
         this.c = false;
         Iterator iterator = this.listeningChannels.iterator();