diff --git a/NTPClient.cpp b/NTPClient.cpp
index 760e142..5ed96e1 100755
--- a/NTPClient.cpp
+++ b/NTPClient.cpp
@@ -201,7 +201,11 @@ void NTPClient::sendNTPPacket() {
     this->_udp->beginPacket(this->_poolServerIP, 123);
   }
   this->_udp->write(this->_packetBuffer, NTP_PACKET_SIZE);
-  this->_udp->endPacket();
+  if (this->_udp->endPacket() == 0) {
+    // recovery if UDP client encounters any errors
+    this->end();
+    this->begin(this->_port);
+  }
 }
 
 void NTPClient::setRandomPort(unsigned int minValue, unsigned int maxValue) {