diff --git a/agent/src/main/java/com/microsoft/hydralab/agent/socket/AgentWebSocketClient.java b/agent/src/main/java/com/microsoft/hydralab/agent/socket/AgentWebSocketClient.java
index 9717bb7d7..a89b5a8d5 100644
--- a/agent/src/main/java/com/microsoft/hydralab/agent/socket/AgentWebSocketClient.java
+++ b/agent/src/main/java/com/microsoft/hydralab/agent/socket/AgentWebSocketClient.java
@@ -82,10 +82,10 @@ public void onClose(int code, String reason, boolean remote) {
                 log.error("onClose, code: {}, reason: {}, remote: {}, reconnectTime: {}, {}", code, reason, remote, reconnectTime, violatedReconnectTime);
                 System.exit(code);
             } else {
-                // wait for 10 seconds and then retry
+                // wait for 30 seconds and then retry
                 try {
-                    log.info("onClose, code: {}, reason: {}, remote: {}, reconnectTime: {}, {} sleep 10 seconds", code, reason, remote, reconnectTime, violatedReconnectTime);
-                    Thread.sleep(10000);
+                    log.info("onClose, code: {}, reason: {}, remote: {}, reconnectTime: {}, {} sleep 30 seconds", code, reason, remote, reconnectTime, violatedReconnectTime);
+                    Thread.sleep(30000);
                 } catch (InterruptedException e) {
                     log.error("onClose, sleep error", e);
                 }
diff --git a/gradlew b/gradlew
old mode 100644
new mode 100755