Why can't my HP DeskJet 3630 connect to my wireless network even though wireless is enabled?

Security software such as firewalls can block communication between your computer and printer during network installation. HP recommends temporarily disabling your firewall to check if that resolves the issue, and you can find more tips at www.hp.com/go/wpc-firewall. You should also try restarting the router and printer in order — router first, then printer. (Page 4)