retry after bad network conn

lib/remote.js

@@ -484,6 +484,11 @@ function _connect(state) {
     }
 
   , onError: function (err) {
+      if ('ENOTFOUND' === err.code) {
+        // DNS issue, probably network is disconnected
+        timeoutId = setTimeout(connect, 90 * 1000);
+        return;
+      }
       console.error("[tunnel error] " + err.message);
       console.error(err);
       if (connCallback) {