If you are a member of a Department or College which has its own VPN service, or you have access to the central OUCS VPN service, then you must use this wireless network. Please note that the Statistics VPN is fully accessible via OWL-VPN.
To use the service, bring up the wireless search tool on your laptop. How to perform this action will differ from OS to OS. If you are within range of an OWL basestation, you should see two wireless networks. This will be one of them. Connect to the OWL-VPN wireless network, then connect to your chosen VPN service, as you would from home. You will then have complete access to the internet via your Departmental network.
See here for a full description of the Wireless service.