How do I back up network if I do not know wifi or network password? Hel

Until you know the Wi-Fi password—and nobody here knows that, and nobody here can look up that password for you—you can't back up using the Wi-Fi network.

Contact the folks that configured your Wi-Fi network.

if you installed the Wi-Fi network, you purchased the Wi-Fi router box and you established the password. If you've forgotten, you'll have to find that password elsewhere, or reset your Wi-Fi network to clear the password.

If your internet service provider set up the Wi-Fi router box for you, check with them for the password.

Angelina2020 wrote:

How to back up wifi if I dont know assword?

You would want to ask whoever is maintaining the Wi-Fi network for the Wi-Fi network name and password.

If you have another computer with access such as a Mac, you might be able to look up the password there.

If this is your network and you’ve forgotten the Wi-Fi password, the password reset options vary by vendor and model.

If you wish to discuss resetting the Wi-Fi network, we’ll need ro know the vendor and model of the Wi-Fi router.

I'm not following what you're asking as one doesn't backup their WiFi. Did you happen to forget the password to your router? If that's the case you'll have to check with the manufacturer.