GATT connection timeout?

Just trying your code, it gives me this log:

>Connect2(MyDev)
=undefined
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -54,
    "services": [  ],
    "data": new Uint8Array([2, 1, 4, 12, 9, 72, 75, 73, 18, 45, 54, 30, 54, 48, 49, 57]).buffer,
    "name": "MyActuator",
    "gatt":  ...
   },
  "connected": true }
delayed for 1000ms...
BluetoothRemoteGATTServer {
  "device": BluetoothDevice {
    "id": "96:05:05:f7:ac:1c random",
    "rssi": -54,
    "services": [  ],
    "data": new Uint8Array([2, 1, 4, 12, 9, 72, 75, 73, 18, 45, 54, 30, 54, 48, 49, 57]).buffer,
    "name": "MyActuator",
    "gatt":  ...
   },
  "connected": false }
end delay - getPrimaryService
Uncaught Error: Unhandled promise rejection: Not connected
> 

I just tried with the smartphone of a colleague (Samsung galaxy S5), he just can't connect to it. Therefore, I will investigate the whitelisting/bonding topic.
It's a shame I cannot use the nrf sniffer (PCA100028) that I just received, it seem to have a problem with the Segger driver version, that seems to be too recent :-/