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For Duo users
Do you use Duo Mobile for work, school, or to protect your personal accounts, like Instagram or Facebook? Check out the resources below for information on setting up and using Duo.
Self-service support
End-user guide - Learn about enrollment, authentication prompts, adding devices, and more.
InfoSec glossary - Learn common InfoSec terminology and clarify acronyms and other jargon.
Blog articles - Learn more about how Duo works and what we're doing to secure your essential workflows.
Download Duo Mobile
Duo Mobile for Android
Duo Mobile for iOS
Are you a student, employee, or general user looking for more support?
Work directly with your organization or university
If you can’t find an answer to your question in our self-service resources, please work directly with your organization to get assistance. Only the team responsible for implementing Duo is authorized to help you enroll, activate, re-activate, or troubleshoot Duo-related issues.
Resources for Duo administrators
Are you managing Duo on behalf of your organization? If so, we've got some really useful step-by-step resources to help you optimize your account.
Shall we get started?
These are also really helpful
Knowledge base - Get answers to frequently asked questions.
Docs - Review our comprehensive product documentation.
Help desk guide - Learn how to address common user concerns.
Community forums - Connect with and learn from Duo administrators and security pros.
Most popular resources for admins
Release notes (with email notification option)
Guide to business continuity preparedness
Can't find what you're looking for?
If you're a Duo administrator: We encourage you to reach out to us through any of the methods below. Our support team is with you every step of the way.
File a case
Initiate a case by clicking on the Support Panel in the sidebar of your admin dashboard.
Send us an email
Give a brief explanation of the issue you are facing, and we will get back to you!
Contact live support
United States
+1 (866) 760-4247
United Kingdom
+44 0800 3585 315
Australia
+61 (1800) 316 751
Belgium
+32 08 002 67 84
Denmark
+45 8025 4630
France
+33 0805 08 43 26
Germany
+49 0800 723 4790
India
+91 000 800 040 4882
Japan
+81 0066 33 814961
Netherlands
+31 0800 022 3681
Norway
+47 800 13464
Singapore
+65 800 32 11 183
Spain
+34 900 839 077
Indonesia
+62 00 180332160351
Philippines
+63 1 800 1114 3071
Taiwan
+866 00801 139 185
Hong Kong
+852 800 938 751
Malaysia
+60 1800 812 899
Cisco Global Support
+1 800 553 2447 - Select option 3 and follow the options for Duo
When can I reach Duo support?
If you have standard support:
9am-5pm Monday-Friday for all issues
24 hours, 7 days a week for critical severity issues
If you have premium Duo Care support:
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?
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
Other paying customers:
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 Duo support directly
All national holidays
US 2025 holidays
December 25, 2024 - Christmas Day
December 26, 2024 - Cisco Designated Holiday
January 1 - New Years Day
January 20 - Martin Luther King Day
May 26 - Memorial Day
June 19 - Juneteenth
July 4 - Independence Day
September 1 - Labor Day
November 11 - Veterans Day
November 27 - Thanksgiving Day
November 28 - Thanksgiving Friday
December 25 - Christmas Day
UK 2025 holidays
December 25, 2024 - Christmas Day
December 26, 2024 - Boxing Day
1 January - New Year's Day
18 April - Good Friday
21 April - Easter Monday
5 May - Early May Bank Holiday
26 May - Spring bank holiday
25 August - Summer bank holiday
25 December - Christmas Day
26 December - Boxing Day
Australia 2025 holidays
December 25, 2024 - Christmas Day
December 26, 2024 - Boxing Day
1 January - New Year's Day
27 January - Australia Day
18 April - Good Friday
19-20 April - Easter Weekend
21 April - Easter Monday
25 April - Anzac Day
9 June - King's Birthday
6 October - Labour Day
25 December - Christmas Day
26 December - Boxing Day
Japan 2025 holidays
1 January - New Year's Day
13 January - Coming of Age Day
11 February - Foundation Day
24 February - Emperor's Day (Observed)
20 March - Vernal Equinox Day
29 March - Showa Day
3 May - Constitution Day
5 May - Children's Day
6 May - Substitute Holiday
21 July - Marine Day
11 August - Mountain Day
15 September - Respect for The Aged Day
23 September - Autumnal Equinox
13 October - Health & Sports Day
3 November - Culture Day
24 November - Labour Thanksgiving Day (Observed)
Mexico 2025 holidays
December 25, 2024 - Christmas Day
1 January - New Year's Day
3 February - Constitution Day
17 March - Benito Juarez Day
17 April - Holy Thursday
18 April - Good Friday
20 April - Easter Sunday
1 May - Labor Day
5 May - Anniversary of the Battle of Puebla
16 September - Independence Day
12 October - Day of the Race
2 November - All Souls’ Day
17 November - Revolution Day
12 December - Lady of Guadalupe Day
25 December - Christmas Day
31 December - New Year's Eve
India 2025 holidays
December 25, 2024 - Christmas Day
1 January - New Year's Day
14 January - Pongal/Makar Sankranti
26 February - Mahashivratri
14 March - Holi
31 March - Id ul Fitr (Ramzan)
18 April - Good Friday
1 May - May Day
15 August - Independence Day/Janmashtami
27 August - Ganesh Chaturthi
1 October - Mahanavami/Ayudha Puja
2 October - Gandhi Jayanthi/Dussera
20 October - Diwali-Naraka Chaturdashi
25 December - Christmas
Portugal 2025 holidays
December 25, 2024 - Christmas Day
1 January - New Year's Day
4 March - Carnival day
18 April - Good Friday
20 April - Easter Sunday
25 April - Freedom Day
1 May - Labour Day
10 June – Portugal Day
19 June - Corpus Christi
15 August – Assumption of Mary
5 October - Republic Day
1 November - All Saints' Day
1 December – Restoration of Independence
8 December - Immaculate Conception
25 December - Christmas Day
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Get troubleshooting assistance and customer success, including onboarding guidance, digital adoption enablement, and periodic health checks to ensure a seamless and supported Duo experience to help accelerate your return on investment in a comprehensive and efficient manner.
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