BETA: Changed external IP check URL the old site we were using was closed.

L2J_Server_BETA/java/com/l2jserver/Config.java

@@ -4044,7 +4044,7 @@ public final class Config
 			String externalIp = "127.0.0.1";
 			try
 			{
-				URL autoIp = new URL("http://api.externalip.net/ip/");
+				URL autoIp = new URL("http://ip1.dynupdate.no-ip.com:8245/");
 				try (BufferedReader in = new BufferedReader(new InputStreamReader(autoIp.openStream())))
 				{
 					externalIp = in.readLine();