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Duo has made a backend change that will be effective March 1, 2021, that may require you to perform a one-time update to the fob you use for Duo.

These instructions are relevant for U2F configured fobs.  This is the type of fob that is self-configured and, for University-issued fobs, is typically blue in color.
University issued U2F fob - blue

  1. After entering your NinerNET username and password on a Single Sign On site (e.g. Gmail,, Canvas), you see the following prompt...
    U2F Security Key Update Prompt
  2. Click Continue
  3. You will be prompted to "Tap your key to upgrade your token" - tap the button on your fob/key
    Tap your prompt screenshot
  4. You will be prompted to allow access to you fob - click Allow
    Allow change to fob
  5. A "Success!" prompt will briefly display on your screen
  6. You will be redirected back to the Duo authentication page and will see the Security Key as "Just Added"
  7. Click Continue to Login (at the bottom)
  8. You can then perform the Duo authentication normally to access the system you are logging into

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