diff --git a/lib/XmppPrebind.php b/lib/XmppPrebind.php
index d1fd8a2..1df19ed 100644
--- a/lib/XmppPrebind.php
+++ b/lib/XmppPrebind.php
@@ -453,6 +453,11 @@ protected function send($xml) {
 
 		$response = curl_exec($ch);
 
+		// Check if curl failed to get response
+		if ($response === false) {
+			throw new XmppPrebindConnectionException("Cannot connect to service");
+		}
+
 		curl_close($ch);
 
 		if ($this->useGzip) {