---
title: "Logging in with 2FA"
canonical: "https://kb.uconn.edu/space/IKB/10785228242/Logging%20in%20with%202FA"
format: markdown
---
When logging in, account holders will receive a verification prompt from Duo after they enter their NetID or email credentials. You will authenticate the request with a push, call, or code on the [device you added to the 2FA service](https://uconn.atlassian.net/wiki/spaces/IKB/pages/10785228238).
> ✅ The simplest way to use 2FA at UConn while traveling is to download and set up the Duo Mobile app for authentication. Duo Mobile works both with and [without](https://uconn.atlassian.net/wiki/display/IKB/Authenticating+Using+a+Passcode) internet access on your second device and is ITS’s recommended second factor authentication method for all situations.
## Authentication Methods
Authenticating via Push Notification (Duo Mobile App)
To authenticate using a push notification (smartphone app), you need to have an internet or data connection.
1. The Duo prompt will appear and display a 3 digit number.
2. Tap the “Are you logging in?” message that displays on your smartphone or tablet to open the Duo Mobile app on your device and tap the message.
3. Enter the **3-digit number** displayed on the device you are logging into. If you receive a request you were not expecting, tap **I’m not logging in**.
Authenticating Using a Passcode
No internet or data connection is required when using the Duo app to authenticate with a passcode. Hardware tokens are small devices that generate passcodes to verify your identity in place of a phone.
> ❌ **Never provide your passcode to anyone online or in-person. **You will never be asked to text, email, or otherwise share your passcode. You should only enter your passcode on the Duo verification screen when you are logging in.
1. At the Duo Prompt, click the link for **Other Options.**
2. On the “Other options to log in” screen, select **Duo Mobile Passcode**.
3. There are two ways to generate one-time passcodes with 2FA:
1. **Duo Mobile: **Open the Duo Mobile app and expand your **University of Connecticut **account. You may need to select **Show** to see the passcode.
b.** Hardware Token: **If you have purchased a [hardware token](https://uconn.atlassian.net/wiki/spaces/IKB/pages/10736632690), push the button on the front of the device to generate a code.
4. On the 2FA authentication screen, click **Enter a Passcode**.** **After doing so, a new text field will appear and the **Enter a Passcode** button will change to **Log In**.
5. Enter the 6 digit code that appears, and click **Log In**.** **
Authenticating via Phone Call
1. On the 2FA screen, click **Call Me**. Your phone will be automatically called if you chose that default authentication method in your settings.
2. A blue bar at the bottom of the screen will indicate the phone number being dialed.
3. Answer the phone.
4. Click the pound key (**#**) to authenticate.
5. If you were not trying to access a system that requires 2FA, press the asterisk key (*****) to report fraud.
Authenticating Using a Text Message
> ❌ **Never provide your SMS codes to anyone online or in-person. **You will never be asked to text, email, or otherwise share your code. You should only enter your code on the Duo verification screen when you are logging in.
1. On the 2FA authentication screen, select **Text Message Passcode**.
2. You will receive a text on the mobile phone you have registered with Duo.
3. Type the 6-digit code in the text you receive into the website you are logging into, and click **Verify.**
> ℹ️ Once a code has been generated, it will only work once.
> ⚠️ Sometimes a phone's or carrier's security settings will change, which may prevent or hamper the receipt of the push notification. If you are no longer receiving push notifications, you can find troubleshooting documents for [Android](https://help.duo.com/s/article/2050?language=en_US) and [iOS](https://help.duo.com/s/article/2051?language=en_US) on Duo's website.
> ⚠️
> ⚠️ If you need to authenticate and you are not receiving push notifications, you can use one of the alternate methods.
## Trust Browser
2FA at UConn allows users to remember their device(s) for 30-day intervals, which decreases the number of times you must use your second factor to log in. Once you enable this feature, you will not receive 2FA prompts for 30 days as long as you are using the same web browser on the same device. This improves end-user convenience while still providing the security benefits of 2FA. To turn on this feature:
Once you complete the 2FA login, you will receive the below prompt. Select **Yes, this is my device** if this is *your device*. If this is a public or shared device, select **No, other people use this device**.
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