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Email and AD Account Lockout

Account Lockout

Email and AD Account lockouts happen when your UO account has 100 consecutive failed authentication attempts. This is usually caused by stale credentials on your email client, or by wireless devices that repeatedly attempt to connect to the UO network, but fail because the password is old or entered incorrectly. Once locked, your account will remain locked for 45 minutes, and during that time you will be unable to access UO file shares or email. After the 45 minute lockout period the failed authentication count is automatically reset, but the failed count may accumulate quickly again if multiple devices are configured with bad credentials. To avoid or eliminate account lockout, please refer to the information below.

UO Account Passwords

UO Account passwords must be changed every six months, or sooner. You should receive a reminder email prior to the expiration of a password, but it is a good idea to set your own reminder to change your password before the six month deadline to help avoid service interruptions.

Fixing Account Lockout

The simplest way to correct account lockout is to reset or update your UO password on all devices you use to access UO email or file shares. Computing devices that may cause account lockout include:

  • Desktop computers
  • Laptops
  • Mobile devices
  • Tablet computers
1. Reset Your Password

To reset or manage your UO Duck ID password, open a web browser and navigate to, then click the appropriate link. Once your password is reset, use it to log in to the page to be sure your credentials work as expected.

2. Update Your Email Client and Wireless Credentials

Once you have a fresh UO Account password make sure it is updated on all computing devices you use.

  • Update your credentials on all email clients you use, including Microsoft Outlook, Apple Mail, and Thunderbird.
  • If you have devices that access a wireless UO network, update the Wi-Fi password for those devices.