Not sure if this was answered but cant see it in the thread. Apologies if you know the following - just trying to help.
Connecting to the wireless does not equal connecting to the internet. So if the wireless does connect but no internet - the first port of call is to check if the neighbours router is connected to the internet. Naturally not sure of your ability to access this but as mentioned previously if you type 192.168.1.1 into your webbrowser when the wireless is connected you should get to the router log in page … then you will need his admin password. Sometime it is the last 6 or 8 digits of the original endlessly long Orange Wifi code the router came with. The as mentioned before you will see the internet status. Reboot if needed… or maybe get more frustrated if this was all rubbish but hopeflully it may help.