Getting into my nook. it keeps saying wrong password. I spent 3 hrs yesterday with them on the phone

Nook is the reading Nook?if so try contacting the customer service and they should be able to direct you to how to get your Password changed.

Check to make sure the date/time on the Nook is correct. If it is too different from your router, it can prevent a connection.

A nook cannot be used as a phone.
Your Nook password is the same as your Barnes and Noble account.
You can reset your nook and start anew, but you risk losing everything you have saved.

If you don't have WIFI it's not a problem of password. Now to check your WIFI, look for some public site with hotspot - free wifi and test your NOOK If no connection, night be a problem with the wireless adapter of tablet.

Nook tablet won't charge

Barnes Noble Password Assistance

Try to restore it or install the firmware again.

From what I have found on this issue it looks like you will need to restore your nook back to factory settings. Any books you bought and backed up from Barnes & Nobles should re-download once you have restored the device and re-registered.

To complete a factory fallback:

1. Turn your device completely off.

2. Power up the device while holding in both the power button and the physical "n" button at the bottom of your NOOKcolor.

3. The device should begin to power up and you will see the welcome screen however keep holding both buttons down and the device will power down.

4. Repeat step 2.

5. When the welcome screen comes up, release both buttons.

6. The device will begin to power on and then a window will pop up asking if you would like to restore your device. Press the "n" button once and again to confirm.

7. The NOOKcolor will restore itself to full factory defaults and will startup as if it were brand new.

8. Re-register your device (while connected to a WiFi network) and you will start over fresh

In order to start using your Nook, you'll need to register it through the Barnes & Noble website - I've shared the steps below. Once you've registered it, you will be able to start purchasing and reading books. Please note that you will need to set-up a B&N.com account first. That is done on BN.com and simply click "new user account." Once you have set that up, follow the below Nook set-up steps.
NOOK Set-Up Steps

1. Charge your new NOOK 3G or NOOK Wi-Fi for 3-hours from a wall outlet using the Power Adapter and USB Cable packed at the bottom of your NOOK box.
2. Turn on your NOOK by pressing the power button at the top.
3. Connect to Wi-Fi.
4. Register your device by entering your BN.com account email.
5. Tap the down arrow button in the lower right corner of your color touchscreen.
6. Enter your BN.com password.
7. Tap Submit