Hello, the 10th october my servlet thrown this fail and I open a topic... Krydos fixed it, and since a days the error is back: Estado HTTP 500 – Internal Server ErrorTipo Informe de Excepción mensaje Connection refused (Connection refused) descripción El servidor encontró un error interno que hizo que no pudiera rellenar este requerimiento. excepción java.net.ConnectException: Connection refused (Connection refused) java.net.PlainSocketImpl.socketConnect(Native Method) java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) java.net.Socket.connect(Socket.java:589) java.net.Socket.connect(Socket.java:538) The post where was solved is this. Thanks.