Glad I could help... the reason this happens I believe is that the large companies that make printers (HP, Canon, Lexmark etc.) make most of their sales in bulk sales to business or government and most will be networked and shared, so it makes sense that the installation software woulld be configured to look for a network connection by default.
Stand-alone PC users just have to understand that are really dealing with commercial software for their printers... maunufacturers aren't going to create special software just for home users.