Originally Posted by SyllogismCheck
'Access point (infrastructure) networks only' and see what happens. I have absolutely no idea what that means

Probably not a help, as the neighbour's systemis probably an "access point". This is the usual stup when you (or your neighbour!) have a wireless router and connect to it with wireless PCs - normally for internet sharing.
"Ad Hoc" is usually only used where you have 2 PCs in the office and want to share files between them