diff --git a/apps/emqx/etc/emqx.conf b/apps/emqx/etc/emqx.conf
index d07443012..7e1eedbab 100644
--- a/apps/emqx/etc/emqx.conf
+++ b/apps/emqx/etc/emqx.conf
@@ -1878,7 +1878,7 @@ listener.wss.external {
   ## Maximum number of concurrent MQTT/Webwocket/SSL connections.
   ##
   ## Value: Number
-  max_connections: 16
+  max_connections: 102400
 
   ## Maximum MQTT/WebSocket/SSL connections per second.
   ##