# Sign In with Duo 2-Factor Authentication This page assumes you have **previously set up** Duo 2-Factor Authentication with your **smartphone** or a **key fob**. If you have not, please see our [Duo Set Up Guide](https://kb.mlml.sjsu.edu/books/security-anti-malware/page/set-up-duo-2-factor-authentication). ##### **First, sign in to SJSU Normally:**
- Navigate to the [**SJSUOne** ](https://one.sjsu.edu/)page, or any other page where you use your SJSU login credentials (eg. SJSU Email):
[![SJSUOne-Sign-In.png](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/scaled-840-0/SJSUOne-Sign-In.png)](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/SJSUOne-Sign-In.png)
- **Sign** **In** with your SJSU ID Number or SJSU Email Address and Password: - - Note: If you are already logged in, you may want to use your browser’s incognito/private mode so that you do not have to log out and back in again.
**![](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-02-Feb/scaled-840-0/image-1550690151856.png)**
Your browser will now bring up the Duo 2-Factor Authentication page, the method you use to sign in with Duo 2-FA will vary based on which option you select and whether you are using a smartphone or a key fob. These methods are outlined below. #### #### **Sign In with a Push Notification:**
- To sign in with 2-factor Authentication from your computer or other device you are signing in with, click **Send Me a Push**:
![](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-02-Feb/scaled-840-0/image-1550690404769.png)
- Press **Approve** on your phone:
![](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-02-Feb/scaled-840-0/image-1550690411648.png)
#### #### **Sign In with a Passcode:**
- Alternatively, click **Enter** **Passcode:** - Entering a passcode may be helpful in situations where the push notification won’t get through, for instance when your computer has a connection to the internet but you have no data service (cell or WiFi) on your phone.
![](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-02-Feb/scaled-840-0/image-1550690441049.png)
- Enter the **passcode** from Duo on your phone into the field on the device you are signing in with:
![](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-02-Feb/scaled-840-0/image-1550690492350.png)
![](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-02-Feb/scaled-840-0/image-1550690540347.png)
#### **Sign in with a Key Fob Passcode:**
- On the Duo **Sign in** page, where it says **Device**, make sure the device selected is **Token**:
[![Duo-Devices.jpg](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/scaled-840-0/Duo-Devices.jpg)](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/Duo-Devices.jpg)
- Press **Enter a Passcode**, and press the single **Button** on your **Duo Key Fob**:
[![Duo-Devices-Passcode-highlight.jpeg](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/scaled-840-0/Duo-Devices-Passcode-highlight.jpeg)](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/Duo-Devices-Passcode-highlight.jpeg)
[![Duo-Fob.jpg](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/scaled-840-0/Duo-Fob.jpg)](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/Duo-Fob.jpg)
- Enter your **One Time Password** from the Key Fob into the passcode field and press **Log In**: - You have about 15 seconds to enter the passcode.
[![Duo-Fob-OTP.jpg](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/scaled-840-0/Duo-Fob-OTP.jpg)](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/Duo-Fob-OTP.jpg)
[![Duo-Token-Passcode-Login-highlighted.jpeg](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/scaled-840-0/Duo-Token-Passcode-Login-highlighted.jpeg)](https://kb.mlml.sjsu.edu/uploads/images/gallery/2019-04-Apr/Duo-Token-Passcode-Login-highlighted.jpeg)