diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index acbe7f6..e0ec02a 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -346,9 +346,9 @@ class HttpClient
 			$this->host = System::gethostbyname($this->host);
 		}
 
-//		if (!$this->checkIsIp($this->host) && !$this->isDomainName($this->host)) {
-//			throw new Exception('Client Host error.');
-//		}
+		if (!$this->checkIsIp($this->host) && !$this->isDomainName($this->host)) {
+			throw new Exception('Client Host error.');
+		}
 
 		return $string;
 	}