Printer lost connection and will not reinstall

[JimHasseco]

I have lost the connection to my printer and have removed the device and tried to reinstall to no avail

[BeemerBiker]

The printer probably went the sweep and when it woke up the router gave it a different IP address. Reset the printer and bypass the router by using Wi-fi direct

If English is not your native language or if you wish to get additional information not covered below, then use the HP and Microsoft support assistants. The latest HPSA supports 36 languages and can be downloaded here. Microsoft's AI assistant is in the latest Windows 10 and 11 releases and there are instructions here on how to enable the AI. Microsoft's AI assistant (Copilot) has a microphone button and supports natural language processing.

You may need to reset the printer: video here 7640e

Wi-Fi setup to router: video here 7640e
Solution 1: Wireless Setup Wizard (00:00:06 - 00:00:45)
Solution 2: Via Wi-Fi direct (00:00:46 - 00:01:50)

For Wi-Fi direct setup page 84+ click here.
This is useful if there is no modem or you do not want to give someone access to your modem but you want to let them print something.

Full feature software Nov 2021

Some videos that might be useful probably more than you really need

Printer Reference 7645e 7640e

Let me know if you have a flex system (Wi-Fi boosters or repeaters) as the setup is much more complicated when using the router type of connection.