HP Envy 5640 is compatible when connected to a Wireless Network that is present with router. Primarily try to configure the 802.11b/g/n card using the Auto-configuration feature over a Wireless Router Network. Remove your USB cable connection from the printer. Check for a Wireless Name and WEP Key that is printed at the back of your router device.
Touch the hi-resolution Screen Display to activate the printer menu. Locate the magic frame bar and then select Wireless Setup. Touch Settings and then tap Auto Wireless Setup Wizard. Now follow the on screen instructions until the desired wireless router is detected. Touch OK and then proceed further to enter the Wireless Network Name and WEP Key using the screen keyboard.
Touch OK and then wait for the Auto-Configuration process to get complete. Once your printer gets connected with the wireless router then check for a steady glowing wireless light that is present near the Power ON button. You can now begin to establish a private wireless network for your HP Envy 5640 Wireless Setup. If you want to Change the connection type to USB cable then try utilizing the HP Envy 5640 series software and then convert to USB Connection.