What If you come across 123.hp.com/envy7640 setup issues?
Check the software compatibility
Do check the speed of the network
Check the hardware connection
Also, reset or restart the device

In case if you need any guidance to choose the connection type, activate the network; try contacting our Printer support team at +1-800-237-0201. As you ring the support number and wait, our printer team will respond to your call at the earliest.
For more of your queries on HP Envy 7640 Printer setup visit https://www.123hp-com.com/envy7640-setup/