diff --git a/redisson/src/main/java/org/redisson/client/RedisConnection.java b/redisson/src/main/java/org/redisson/client/RedisConnection.java
index e94c4e270..da53ef421 100644
--- a/redisson/src/main/java/org/redisson/client/RedisConnection.java
+++ b/redisson/src/main/java/org/redisson/client/RedisConnection.java
@@ -180,7 +180,7 @@ public class RedisConnection implements RedisCommands {
     }
 
     public <T, R> RFuture<R> async(RedisCommand<T> command, Object... params) {
-        return async(null, command, params);
+        return async(-1, command, params);
     }
     
     public <T, R> RFuture<R> async(long timeout, RedisCommand<T> command, Object... params) {
@@ -255,7 +255,7 @@ public class RedisConnection implements RedisCommands {
         if (command != null && command.isBlockingCommand()) {
             channel.close();
         } else {
-            RFuture<Void> f = async(redisClient.getConfig().getCommandTimeout(), RedisCommands.QUIT);
+            RFuture<Void> f = async(RedisCommands.QUIT);
             f.onComplete((res, e) -> {
                 channel.close();
             });
diff --git a/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java b/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
index 793a120d4..2617ccaae 100755
--- a/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
+++ b/redisson/src/main/java/org/redisson/connection/SentinelConnectionManager.java
@@ -543,7 +543,7 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
                     return;
                 }
 
-                RFuture<String> r = connection.async(config.getTimeout(), RedisCommands.PING);
+                RFuture<String> r = connection.async(RedisCommands.PING);
                 r.onComplete((resp, exc) -> {
                     if (exc != null) {
                         result.tryFailure(exc);