Aruba Instant default password.

After upgrading an Aruba Instant AP to 8.6.0.0 from 8.3.0.0 and factory resetting I discovered that the previous default management credentials of admin, admin no longer worked. After some head-scratching I discovered this change from the the 8.5.0.0 quick start guide:

So Aruba have changed the default password to be the serial number rather than a generic string. This should be a step forward for the cases where we find unconfigured APs transmitting their default SetMeUp-xx:xx:xx SSID, for these unconfigured cases the curious or hackers with bad intentions will have to have physical access to the AP to discover the serial number.