I have 2 computer, 1 desktop (WinME, wired NIC) and 1 notebook (W2K, wireless NIC), networked together via a Dlink wireless router. The connection to the notebook failed many times uintil I set the Adhoc mnode. Before that the infrastructure mode is used. I checked that the key and channel were all matched with the settings of the router but no connection.

Would anyone please tell me what are differences between the infrastructure and adhoc modes.