diff --git a/Optimizing-Shadowsocks.md b/Optimizing-Shadowsocks.md
index 70b2470..689d432 100644
--- a/Optimizing-Shadowsocks.md
+++ b/Optimizing-Shadowsocks.md
@@ -12,6 +12,7 @@ net.core.somaxconn = 3240000
 
 net.ipv4.tcp_syncookies = 1
 net.ipv4.tcp_tw_reuse = 1
+net.ipv4.tcp_tw_recycle = 0
 net.ipv4.tcp_fin_timeout = 30
 net.ipv4.tcp_keepalive_time = 1200
 net.ipv4.ip_local_port_range = 10000 65000
@@ -26,4 +27,6 @@ net.ipv4.tcp_congestion_control = hybla
 
 Then:
 
-    sysctl -p
\ No newline at end of file
+    sysctl -p
+
+Warning: **DO NOT ENABLE `net.ipv4.tcp_tw_recycle`!!!** See [this article](http://vincent.bernat.im/en/blog/2014-tcp-time-wait-state-linux.html).