It was also fine when the web api was hosted in production and called from a dev asp.net app. 401 unauthorized error only occurred when the web api and the app were both run on production server. Windows authentication was used for both. The fix (or workaround) was to call the web api using its IP address instead of a friendly url.
When someone enables Windows Authentication in IIS and the user accesses the World Wide Web application, the user’s credentials are passed to the report server. Because the server does not recognize private local credentials, it generates an “HTTP 401: Not Authorized” situation. You will need to change the services that report Windows Authentication to “Basic”.
My request was similar to yours. Everything is managed in a polished development environment. It also worked fine when the Net API was hosted in production and called from an asp.net development application. 401 Invalid errors only occurred when this web application and API was already running on the production server. The Windows validation used must be suitable for both.
This ended up being a permissions folder, not an ASP.NET configuration issue, and that’s why the Everyone user was a little long. Permits started working there. You can press F4 on the web to get the actual project to display “Project Properties”. Then make sure anonymous authentication is enabled in the development server zone:
What is the difference between ASP NET and ASP NET core and ASP NET MVC?
ASP.NET Core has become a “learn and write” layout for app development. ASP.NET Core also focuses on a different region. It is cross platform which means you can use it on Windows, Mac, Linux. The previous version, ASP.NET MVC, was not cross-platform and only ran on Windows.
How to return a 401 authentication error in ASP.NET?
This affects the customer provided that no claims have been made. I solved this problem with the aspnet.suppressformsredirect nuget package and set the suppression to mark the response for authentication. See this activity after the topic. Here are two ways to return 401 in MVC. Show activity in a post.
Can a 401 error handler prevent a 401 callback?
This means that a 401 callback will not receive an exit error callback, and vice versa. Typically, if a 401 error is returned, a user error and a 401 callback will be raised.
What is the error message 401.2 for ASP.NET?
Error 401.2 Lesson: Unauthorized: Failed to connect to payment server configuration. When the application is deployed I have an asp.net 4.0 application that can run on Cassini but when I deploy IIS post I get the above error. It can run in the default app space used by a number of other apps and work just fine.
When does an error 401 occur in ASP.NET?
It also worked well when the web API was handled in production and called directly from the asp.net development application. The unwanted 401 error only occurred when the online world API and the app used production on the server. Windows authentication is used for both. The correct solution (or workaround) was to call the web API using its IP address instead of a friendly URL.
When does an unauthorized error 401 occur in ASP.NET?
This was also the case when the web API was hosted in production and called directly from the asp.net developer application. The 401 Unauthorized error only occurs when both the Word Wide Web API and the application are running on a production server. Windows certification was used for both.
When does error 401 occur in ASP.NET Core?
My problem was looking like yours. Everything worked fine in the development environment. It was also good to have the web API hosted in production and also called from the asp.net development program. The 401 Unauthorized error only occurs when the web API and software is running on a production website. Windows authentication was used through both.
What does 401 Unauthorized error mean in ASP.NET?
System.Net.Http.HttpRequestException: Response status code far from success: 401 (Unauthorized). at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode() at HttpHelper.PostAsJsonObject[T](String uri, T t) Posted in asp.net and logs and found its own strange pattern.
Is it possible to throw a 401 error in ASP.NET?
It will also work with a range of status codes. Just pay attention to the 401: as you probably figured out, when ASP.NET MVC recognizes this style, you are automatically redirected to someone’s login page and get a purchase error page for 401. Glory Code can be a real PITA that needs to be implemented. A small workaround is needed regarding page loading in ASP.NET WebForms.
Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.