check all ports on agent disconnect (#399)

* check all ports on agent disconnect

* 2.3.5

Author: Alberto Iannaccone

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "arduino-create-agent-js-client",
-  "version": "2.3.4",
+  "version": "2.3.5",
   "description": "JS module providing discovery of the Arduino Create Plugin and communication with it",
   "main": "lib/index.js",
   "module": "es/index.js",

package.json

@@ -110,7 +110,10 @@ export default class SocketDaemon extends Daemon {
           this.agentInfo = data;
           this.agentFound.next(true);
         }))
-        .catch(() => timer(POLLING_INTERVAL).subscribe(() => this.findAgent()));
+        .catch(() => timer(POLLING_INTERVAL).subscribe(() => {
+          this.pluginURL = null;
+          this.findAgent();
+        }));
       return;
     }