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Resources for Duo users Resources for administrators

Are you a student, employee, or general user looking for help?

If you can’t find an answer to your question in our self-service resources, please work directly with your admin to get assistance. Only the team responsible for implementing Duo is authorized to help you enroll, activate, re-activate, or troubleshoot Duo-related issues. Contact your admin for additional support.

Download Duo mobile for iOS Download Duo mobile for Android

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End user guide

Learn about enrollment, authentication prompts, adding devices, and more.

Read Duo’s guide

How to reactivate Duo Mobile

There are multiple options to reactivate Duo Mobile.

Learn how to reactivate on mobile

Helpful resources

Biometric authentication using thumbprint on trusted smartphone for troubleshooting Duo Push notification

Troubleshooting Duo Push notification issues on iOS devices

Troubleshoot on iOS
Two remote workers using Duo MFA support on trusted device

What do I do if I’m locked out of social media or a third-party account?

Read more about getting locked out
Trusted mobile device using Duo Push notifications for troubleshooting

Troubleshooting Duo Push notification issues on Android devices

Troubleshoot on Android
Duo user seeking support on truted device

Access Duo’s blog

Check out our blog

Are you a Duo administrator looking for help?

Are you managing Duo on behalf of your organization? If so, we've got these useful step-by-step resources to help you optimize your account.

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Getting started guide

Get started with Duo Security

Free trial onboarding

Get this quick guide to set up your trial

Deployment guide

Download Duo Deployment best practices

Integrations

See how to setup your app integrations

Demo video

Watch the on-demand demo

Product demos

View interactive demos

Resource hub

Knowledge base

Get answers to frequently asked questions

Access Duo’s knowledge base

Docs

Review our comprehensive product documentation

Review Duo documentation

Help desk

Learn how to address common user concerns

Access the help desk guide

Community forums

Connect with and learn from Duo administrators and security pros

Learn from peers and experts

End user education communication templates

Access communication templates

Guide to promoting Duo Push with users

Download Duo Push guide

Popular resources

Repeating Duo green tiles

Release notes

Stay up to date on new features and product changes.

Access Duo release notes
Policy guide

Policy guide

A variety of content to help you better understand and implement Duo policies.

Read Duo’s policy guide
Business continuity

Guide to business continuity preparedness

Learn how your applications will respond to outages.

Review Duo’s continuity guide

Need additional admin support?

Get the help you need, when you need it. Check out the resources below and reach out to a member of our support team.

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Support options

File a case

Initiate a case by clicking on the Support Panel in the sidebar of your admin dashboard.

Open case

Send an email

Give a brief explanation of the issue you are facing, and we will get back to you!

Email us

Call support

Use your regional support number as listed below to talk to a live agent.

Contact Duo by phone

Standard support

- 9am-5pm Monday-Friday for all issues

- 24 hours, 7 days a week for critical and high severity issues

Signature support hours

24 hours, 7 days a week, 365 days a year for all issues*

*For the holidays listed below, one or more of our regional teams may be unavailable. On those dates, we offer 24x7x365 for critical and high-severity issues only

How quickly will Duo get back to me?

The response depends on criticality:

Low

No impact on the customer's business operations. The customer requests information about features, implementation, or configuration for Cisco's hardware, software, or as a service product.

Response:

1 business day

Business impact:

Minimal-to-none

What should you do?

Send an email

Medium

Minimal impact on the customer's business operations. Cisco hardware, software or as a service product is partially degraded.

Response:

4 business hours

Business impact:

Medium-to-low

What should you do?

Send an email

High

Substantial impact on the customer's business operation. Cisco hardware, software or as a service product is degraded.

Response:

2 business hours

Business impact:

High, users may be unable to access applications

Duo Care customers:

Call Duo support directly listed below or

Send an email

Critical

Critical impact on the customer's business operations. Cisco's hardware, software or as a service product is down.

Response:

1 business hour

Business impact:

High, outage prevents access to applications

What should you do?

Call support directly on the number listed below

Contact Duo by phone

Are you a Duo subscription administrator? Contact a member of our team from one of the numbers listed below, depending on your country.

Australia

(1800) 316 751

Belgium

08 002 67 84

Cisco Global Support

Select option 3 and follow the options for Duo

+1 800 553 2447

Denmark

8025 4630

France

0805 08 43 26

Germany

0800 700 4550

Hong Kong

800 963 873

India

000 800 040 4882

Indonesia

007-803-011-5126

Japan

0066 33 814961

Malaysia

1800 813 191

Netherlands

0800 022 3681

Norway

800 13464

Philippines

800 1114 3071

Singapore

800 120 6307

Spain

900 839 077

Taiwan

00801 139 185

United States

(866) 760-4247

United Kingdom

0800 3585 315

Holiday closures

  • United States 2026
  • United Kingdom 2026
  • Australia 2026
  • Japan 2026
  • Mexico 2026
  • India 2026
  • Portugal 2026

Support offerings

Duo has a wide range of support offerings to fit your needs. Whether you need hands-on guidance, further troubleshooting, or quick-start assistance, our support team is here to help.

Professional at their desk with glasses on, engaging with Duo support on their laptop screen while looking at their desktop monitor.

Duo Solution Attached Services (SAS)

Duo Solution Attached Services (SAS) provides year-round expert consulting and direct, hands-on keyboard implementation to achieve faster time to value and reduce deployment risk.

Learn more about Duo SAS

Duo Care Signature

Our support team can help with implementation, maintenance, and more—so you can focus on your business.

Learn more about Duo Care

Enhanced Support

Enhanced support for Duo ensures you’re getting more from Duo—for the entire length of your contract.

Learn more about Enhanced support

Duo Quick Start

Get 60 days of expert advice from our trusted deployment advisors and leave the stress of getting started behind!

Connect with Duo Quick Start