[Rolyb]

I'm confused about "Device Pairing" on my BB Classic. If I go to Settings/Device Connections, "Allow Connections" is on. Under "Paired Computer and Tablets" the view shows two devices as paired - my laptop and my netbook.
If I click on either, sometimes I am able to see the folders in the device and sometimes not, and that's what I don't understand. What activates or deactivates the pairing?