# Signup user error 'Suspicious request requires verification'

**URL:** <https://community.auth0.com/t/signup-user-error-suspicious-request-requires-verification/69027>\
**Category:** Get Help\
**Tags:** signup\
**Created:** [September 2, 2021, 5:54pm UTC](https://community.auth0.com/t/signup-user-error-suspicious-request-requires-verification/69027 "2021-09-02T17:54:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dannywbso](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/dannywbso/32/12778_2.png) [@dannywbso](https://community.auth0.com/u/dannywbso)\
**Post date:** [September 2, 2021, 5:54pm UTC](https://community.auth0.com/t/signup-user-error-suspicious-request-requires-verification/69027/1 "2021-09-02T17:54:11Z")

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Good evening,

We have a Azure API (App service) in which we provide a call for registering new users with Auth0 with the Resource Owner Password flow. But in the signup call we receive an error: ‘Suspicious request requires verification’ with HTTP status code 401.

Additional information:

- We’re using the .NET Nuget package ‘auth0.AuthenticationApi’ version 7.10.0.
- We have already disabled the ’ Suspicious IP Throttling’ functionality in Auth0.
- Before disabling we’ve added our Azure APP ip-address to the whitelist.
- When running our API on a local machine or send the request with Postman there’s no error.

Has anybody any idea why this exception occurs?

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**Author:** ![rueben.tiow](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/rueben.tiow/32/11646_2.png) [@rueben.tiow](https://community.auth0.com/u/rueben.tiow)\
**Post date:** [September 14, 2021, 6:42pm UTC](https://community.auth0.com/t/signup-user-error-suspicious-request-requires-verification/69027/3 "2021-09-14T18:42:56Z")

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Hi @dannywbso,

Welcome to the Auth0 Community!

I understand that you are encountering issues with the Resource Owner Password flow, specifically with the `Suspicious request requires verification` error.

This error usually occurs whenever Auth0’s [Attack Protection](https://auth0.com/docs/configure/attack-protection) features detect a suspicious authentication, specifically with the [Bot Detection](https://auth0.com/docs/configure/attack-protection/bot-detection) feature.

It’s important to be aware that when using the Resource Owner Password Grant flow, the Bot Detection feature should be disabled. This is an inherent [limitation with Bot Detection and ROPG](https://auth0.com/docs/configure/attack-protection/bot-detection#flow-limitations).

After disabling Bot Detection, you should be able to authenticate without any errors.

Please let me know if you have any further questions. I would be happy to answer them.

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**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\
**Post date:** [September 30, 2021, 4:36pm UTC](https://community.auth0.com/t/signup-user-error-suspicious-request-requires-verification/69027/4 "2021-09-30T16:36:25Z")

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