How do I fix it?

In this case, you have to reset the password. One of the methods to do that is using iTunes. Just follow below steps to reach this aim.

If you haven't synced your iPhone with iTunes before or if you haven't enabled your Find My iPhone on, you can take advantage of the third method. Resetting iPhone Password in Recovery Mode is not complicated. The steps below will show you how to do that.
Step 1. Disconnect all cables from your iPhone and turn it off.
Step 2. Press and hold the Home button and connect your device to iTunes. If your iPhone does not turn on, please turn it on manually.
Step 3. Continue holding the Home button until you see the Connect to iTunes screen. iTunes will remind you that it has detected your iPhone in recovery mode.

Step 4. Click OK. The Summary tab in iTunes appears. Click "Restore iPhone" and restore your iPhone.

Recovery Mode will erase all your data and passcode from your iPhone, resetting it to factory defaults. Thus, you'll have brand new iPhone without any personal data after you reset iPhone password with Recovery Mode. Therefore, please consider carefully whether you need to use this method to reset password on iPhone.
If you remember your current iPhone password and you just want to change into a new password, you can finish it with ease. Go to Setting > General > Touch ID > Passcode (iOS 9/8/7) or Passcode Lock (iOS 6), then enter the current password and tap Change Passcode. Then enter the new passcode. Now, you have reset your iPhone password.

For more methods, check: How to Reset Password on iPhone

if you remember the password then slide to unlock or else if u dont remember it you have to put it in to dfu mode and then restore it with itunes. make sure you have backed up your ipad.

When you forgot your password and exceeded the tries you can enter it with, your account will be locked and will have to be unlocked using your internet connection (WiFi or data connection). Your device will ask you for your gmail and password. Once able to provide, they will ask which you prefer to reset and it is done. Unfortunately, not everyone is connected when the account is locked. You will have to do the following when this happens: - turn off device - press the following: volume up/down or both power button home button (if any) OR press the reset button/hole -wait for a logo to appear before letting go -choose recovery mode -choose wipe data/factory reset -choose yes -device will restart or will ask you to restart and confirm.

If I were to guess what you are trying to say is that when you go to the wifi in you system setting, you see a lock next to the wifi network name ?(SSID) The lock indicate that the wifi network you are tring to join has a password that need to be entered to access the network. Ask the person that did the setup on die wifi router for the password.

Hi Janie
Dont panic... I'm sure there is a simple fix. But you really must remember your passwords better. There are many Apps and software programs to help you with this. Find a good method & stick with it. The future of passwords & security can only get harder.
You haven't mentioned what brand / model you are dealing with. This does make it hard for anyone to troubleshoot.
Find your manual. get an online PDF manual to learn the key sequences to press to wake it up or reset the device. Where did you purchase? Perhaps they can help!
Cheers

You will have to restore it by connecting to iTunes on your computer. That will erase all settings including the password. If you have a backup you can get it then set up as a new device with a new password.

You do not say what type of password was set and if you have forgotten it or just want to reset from a known password..
If you just want to change your gmail login password
- Go to google.com/accounts on the tablet browser
- Sign in
- "Change Password"
- Go back to the Home Screen on the tablet
- Open the GMail app, clicked on Menu, then Refresh -- you will get a sync error
- Wait for a notification to re-enter your password (a triangle with an exclamation point in the tablet notificaiton bar and/or something in the gmail screen)
- Enter the new password

This simple solution sometimes works:
Turn it off.
Turn back on.
When you get the warning triangle in the notification bar, open the notification.
You will then get a login screen.
Input your new password.

Pattern Lock- Incorrectly enter pattern 5 times (4 or more points each time) . Pop up message will appear Click Next and you will be prompted for goole a/c details or security for pattern lock.
tap forgotten pattern and on next screen enter goole account details. Then next screen allows you to choose a new screen lock option.

Locked with PIN or password _Try Screenlock bypass pro from play store.
The only other solution is a hard reset which is only as a last resort. You need to access Androids Recovery mode. Check your manual. Most devices it is power off then power up holding volume + and power buttons.
Once in this mode use power down button to highlight "wipedata/factory reset option, then use power button to select it.
Vol - button to to scroll and select yes delete all user data option with power button. When device reset select option to reboot now and the device will turn on unlocked but you will have lost your personal data.

Face unlock - you were asked to provide a pattern or PIN backup when you set it. Just bypass and enter PIN or pattern.
Good Luck

If it is running android, you can usually just enter your password 5 times incorrectly and a "Forgot Password?" button should appear. If it's symbian or windows then you probably have to just factory reset the device.

*You can only use this solution if your Administrator account has no password.*

Boot your laptop to safe mode by following these instructions.

* If the computer is running, shut down Windows, and then turn off the power

* Wait 30 seconds, and then turn the computer on.

* Start tapping the F8 key. The Windows Advanced Options Menu appears. If you begin tapping the F8 key too soon, some computers display a "keyboard error" message. To resolve this, restart the computer and try again.

* Ensure that the Safe mode option is selected.

* Press Enter. The computer then begins to start in Safe mode.

After all the necessary drivers and system files have been loaded you will be presented by the Log On screen click on "Administrator" icon and wait for your computer to finish booting. Then click on Control Panel. Under Pick a category, click User Accounts. Under Pick a task, click Change an account. Under or pick an account to change, click the account for which you want to access here you will have to remove it's password. From here click on Remove password, it shouldn't ask for any verifications from here. Click on Ok or next then exit control panel and restart your computer.

If you are still unable to access your account try following the solutions on this link.

http://www.youtube.com/watch?v=P17qkZEHL2M