The remote server returned an error: (401) Unauthorized sharepoint

Question

Here is my scenario:-

I have my Sharepoint server hosted on Domain A and I have my machine on Domain B. There is not any trust between Domain A and Domain B.

I am trying to access the Sharepoint Document library from my machine to Sharepoint server which is on Domain A.

Now when i used this code:-

ClientContext clientContext = new ClientContext(siteURL);
clientContext.Credentials = new System.Net.NetworkCredential(username,password,domain);
clientContext.ExecuteQuery();

I got the following error:-

The remote server returned an error: (401) Unauthorized 

I want to know (Correct me if i am wrong) is it possible to access sharepoint document library accross the domain without having trust between each other and the only solution i think is my machine should be on the Domain A.

Update

I transfered my machine on Domain A that is on that domain where sharepoint server is installed. Still same error getting at clientContext.ExecuteQuery();. I dont know why pelase help.

Please help.

Thanks in advance

Answer 1

Can you access the SharePoint library with your browser when you use the user? If so then this could be doublehop issue;

"The double-hop problem will usually only be an issue to those of you who write some sort of web-based code (a web application or web service) that uses impersonation."

I´m probably the least capable person to work with code but I would like you to try out the browser with the user and see what happens. EDIT:

http://blogs.msdn.com/b/knowledgecast/archive/2007/01/31/the-double-hop-problem.aspx

Answer 2

You can and its called cross domain access that you would need to setup on the server, this is a link to another question with the answer:

https://stackoverflow.com/questions/12780886/cross-domain-access-in-sharepoint-2010

hope it helps :)

Answer 3

Make sure the credentials you're passing match the destination farm's authentication mechanism - classic/claims (assuming this is 2010).

Also try using the Secure Store Service Application to host your connection credential settings.