401 Error When Calling Web Service
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each other. Join them; it only takes a minute: Sign up The request failed with HTTP status 401: Unauthorized up vote 8 down vote favorite 1 I have a .NET 2.0 website (VB) running in my IIS6 (XP Pro SP2) and a .NET 3.5 (configured as .NET2 under IIS's ASP.NET tab, of course) hosting an ASMX web service. calling web service php In Chrome, I can call the ASMX and invoke the web methods successfully. However, in calling the web methods in code, from the .NET 2.0 website I get: The request failed with HTTP status 401: Unauthorized. How do I get around this? web-services http-status-code-401 .net-3.5 share|improve this question edited May 9 '12 at 16:59 FishBasketGordo 17.5k33366 asked Jul 19 '10 at 16:05 Matt W 2,53683668 add a comment| 5 Answers 5 active oldest votes up vote 15 down vote accepted You need to set the credentials in you application when you initialise the webService object. Something like webService.UseDefaultCredentials = true This will set the credentials of the request to the current user executing the application. share|improve this answer edited Apr 13 '11 at 14:44 youwhut 48021330 answered Jul 19 '10 at 16:14 btlog 3,49611834 This is for the cient created in VB/C# .. what about Java, say I need to connect to this webservice through mobile application. In that case, I can't get the Default credentials. –rDroid Aug 2
ASP.NET Community Standup Forums Help Home/ASP.NET Forums/Advanced ASP.NET/WCF, ASMX and other Web Services/"401 Not Authorized" error when authenticating
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a web service "401 Not Authorized" error when authenticating a calling a web service asynchronously c# web service RSS 9 replies Last post Aug 16, 2007 05:12 PM by BigBlueEye ‹ Previous calling web service without proxy Thread|Next Thread › Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Support Options Advanced Search Reply Afro Blanca None 0 Points 104 http://stackoverflow.com/questions/3282780/the-request-failed-with-http-status-401-unauthorized Posts "401 Not Authorized" error when authenticating a web service Dec 01, 2006 03:23 PM|Afro Blanca|LINK Here's the situation : I have the same asp.net 2.0 web application running on both Machine A and Machine B. On both machines, I have Integrated Windows Authentication turned on, and Anonymous Access turned off. When I http://forums.asp.net/t/1050587.aspx?+401+Not+Authorized+error+when+authenticating+a+web+service hit a certain page on Machine A, it will call the web service on Machine A, and then it will call the same web service on Machine B. Likewise, when I hit the same page on Machine B, it will call the web service on Machine B, and then it will call the same web service on Machine A. On both machines, I have an account set up for this web service to use. The username/password for Machine A is different from the username/password for Machine B. The machines are on different Active Directory domains. The websites on Machine A and Machine B use the same second-level domain, but have different subdomains. On the page that calls the webservice, I have a block of code that looks like this : try {//call the webservice on Machine A CacheMaintenance maintain = new CacheMaintenance("local.mysite.com"); maintain.Credentials = new NetworkCredential("LocalLoginName", "LocalPassword", "LocalDomain"); maintain.FlashTheCache(); maintain.Dispose(); } catch (Excepti
in a SharePoint Calendar List -Part1 → 401 Unauthorized error while calling a webservice Posted by Manisha 2 I have already written about the 401 Unauthorized error earlier here. But I faced something else which I thought I should write to save someone else's time. Being https://askmanisha.wordpress.com/2014/03/26/401-unauthorized-error-while-calling-a-web-service/ the site collection administrator I didn't expect this error, however when trying to access a web service from my site's workflow I encountered it. Twice this has happened to me while moving my applications to the production server http://serverfault.com/questions/669940/ssrs-returning-401-unauthorised-error-when-calling-web-service and I made it a point to write about it. Background - My application has a Nintex workflow that uses the "Call Web Service" action. This action made a call to the copy.asmx web service. Worked all good web service until it was in my development and UAT machines. The moment I moved it to the live environment, it started throwing the 401 Unauthorized error. I ensured that the account accessing the web service has full control (also made it site collection administrator), still the error didn't go. On further investigation, when I tried opening the same web service in the browser from the server, it gave the same Unauthorized error. This cleared up the picture calling web service even more. A bit of research and I found the reason behind it. The .Net 3.5 framework introduces a loop-back problem that affects web service authentication in SharePoint. This issue doesn't allow web services to be accessed by any mode (client/tool/server). Microsoft decided to introduce this, but unfortunately it breaks a number of different things in SharePoint. Hence a registry entry has to be created in the web front end servers to resolve the loop back issue. Implementation Perform below steps on each of the SharePoint Web Front End Servers. 1. Click Start, click Run, type regedit, and then click OK. 2. In Registry Editor, locate and then click the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa 3. Right-click Lsa, point to New, and then click DWORD Value. 4. Type DisableLoopbackCheck, and then press ENTER. 5. Right-click DisableLoopbackCheck, and then click Modify. 6. In the Value data box, type 1, and then click OK. 7. Quit Registry Editor, and then restart your computer. Refer to http://support.microsoft.com/kb/896861/en-us for more details Restarting the server is mandatory to ensure that the changes are effective. The same change can be tested by various ways: Opening the web service directly on the browser in the server Calling the web service from Nintex's Call web service action and test the connection (the error should vanish now) Calling the web service from an InfoPath form And there yo
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top SSRS Returning 401 Unauthorised Error when calling web service up vote 1 down vote favorite We have two web servers that call the SSRS service to query the reports held there. Both servers are set up identically but while one works the other returns a 401 unauthorised exception when trying to query the list. The authentication type is NTLM and both servers have been set up on the SSRS to have browser capabilities. The applications running on both servers that call the SSRS are running as ApplicationPoolIdentity so it falls back to executing the report as Domain\ServerName$. I can see the working server is authenticating with username Domain\ServerName$ but can't see if the non-working server is passing that through as only successful executions are logged by SSRS. Is there a way to check that somewhere? Is there a way that type of authentication could have been turned off for one server? Thanks windows-server-2008-r2 ssrs ntlm share|improve this question asked Feb 19 '15 at 17:41 ColinRobertson 62 add a comment| active oldest votes Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook. Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Browse other questions tagged windows-server-2008-r2 ssrs ntlm or ask your own question. asked 1 year ago viewed 207 times Related 2Reporting Services Error 401: Unauthorize