It could mean 你r login information is compromised and someone is trying to access 你r account。 Click "DENY" in the prompt or ignore it, then contact the OTS技术支持台。

You can use the Duo mobile app (available for smartphone or tablet) to 生成旁路码（密码） even if 你 don't have an Internet, Wi-Fi, or a cellular connection。

The most common reason for 你r account to be locked out is from multiple incorrect NetID password attempts or multiple failed Duo login attempts in a row。 Wait 10 minutes for 你r NetID and 你r Duo access to both automatically unlock。

你可以选择“记住我”选项。 This allows 多多记住你，减少你收到的提示次数。 你一定是 authenticating on the same (non-public) computer/browser and must not clear browser cookies。 学习更多的知识。

没有智能手机，没有问题。 You can use the Duo mobile app on a tablet, receive codes to a phone that can use text SMS, use 你r own security key or 的密码。

It’s strongly recommended that 你 enroll multiple devices 当 registering for Duo so 你 can have a backup ready。

是的，Duo手机稳定的十大彩票网站是免费的。 The Apple App Store requires payment information on record even 当 downloading a free app。

学生 using Duo on a mobile device or with 的密码 (bypass codes) should only add 5-10 seconds to classroom time。 If students don’t use technology (laptops, etc。) that require logins, they won’t need to authenticate with Duo。 Additionally, Duo isn’t an excuse for students to use phones during class。

学生 should use 的密码。 In 你r syllabus or at the start of the semester, 你 can ask students to print these out and bring them to every class。 以下是可能会有所帮助的示例文本：

• Be prepared to log into 两人MFA to access class activities (i。e。, exams, quizzes) and apps like 你r Microsoft account, or potentially risk losing points。 Set a backup plan at towson。edu/netid in case 你r primary device is unavailable, and print passcodes in advance。
• Failure to have 你r MFA device or a backup (lost, was stolen, dead battery, etc。) or printed codes is not an excused absence or a valid reason for make-up work。
• Limit use of devices in class: use 你r mobile device to authenticate/login, then put it away during class。

学生 should use 的密码。 If the student has set up their security questions in advance, they can request a temporary passcode online at towson。edu/netid or they can call the OTS技术支持台 at 410-704-5151 to verify their identity and receive a temporary one-time passcode。 学生 with the pre-printed codes might avoid lost quiz/exam time。

If the student is using their own device and checked the “Remember Me” option, they might be able to restart their computer and re-authenticate with their NetID/password without being prompted for Duo (i。e。, not need to use their smart device)。

If the student did not click the “Remember Me” box, is using a shared device, or their browser settings weren’t saved, they’ll need to log back in with their NetID/password and authenticate with MFA-Duo which will require briefly using their smartphone。 Use of a proctor assisting with this process is recommended during testing time。

If 你 have a specific need, please reach out to us through TechHelp, so we can talk about options and potential solutions。