Asus P526 - Manual (Page 94)

6. Tap Yes to allow your computer to
connect to your device.
NOTE: The Bluetooth authentication passkey is only
required if a paired relationship is not yet established
between devices.
8. When prompted, input the same
authentication passkey on your P526.
7. From your computer, key in an
authentication passkey then click OK.
The authentication passkey is used to
secure your connection.