diff --git a/tcpclient.php b/tcpclient.php
index d92705f..69ba63c 100644
--- a/tcpclient.php
+++ b/tcpclient.php
@@ -56,7 +56,10 @@ class tcpclient
       $i = 0;
       while (empty ($this->ipv4) && empty ($this->ipv6) && $i < 10)
       {
-        $nsRecords = dns_get_record ($ipOrName,  DNS_AAAA + DNS_A + DNS_CNAME);
+        $nsRecords = @dns_get_record ($ipOrName,  DNS_AAAA + DNS_A + DNS_CNAME);
+        if ($nsRecords === false)
+          throw new \Exception ("Can not find the IP for $ipOrName : ".
+            "DNS Error", 500);
         foreach ($nsRecords as $val)
         {
           if ($val["type"] === "CNAME")