401 - Unauthorized: Access is denied due to invalid credentials

Question

4.33/5 (2 votes)

See more:

Hi All,

I am getting below error message:
"401 - Unauthorized: Access is denied due to invalid credentials"

When i trying to login our website remotly it gives access denied error.
if i changed authentication mode "Windows" in IIS7.5 on our staging server then i can logged into website.
But It is not working if i set authentication mode "Basic".
I want authentication mode "Windows" but when i set windows authentication web site can access remotely but can't access on server network.
please advise me..

Regards,
Sanjay Gade.

Posted 9-Jul-12 23:45pm

sanjayv.gade

Updated 25-Oct-21 9:04am

v2

Add a Solution

Comments

Mario Majčica 10-Jul-12 6:02am

What's your goal? What kind of authentication you are trying to implement?

6 solutions

Solution 7

1. Open IIS and select the website that is causing the 401
2. Open the "Authentication" property under the "IIS" header
3. Right Click the "Anonymous Authentication" item and click "Edit"
4. Select "Application Pool Identity" in popup
5. Click OK

Posted 10-Jan-15 5:42am

scemis

Comments

marunkumarbe 31-Jan-18 18:14pm

Worked for me. Thanks

Solution 12

Check if the user has access granted to the folder.
In my case, the trouble was because someone has removed the group SERVER\Users (that contains DOMAIN\Users inside group) from folder.

Posted 1-Jul-21 14:29pm

Lucio Flavio

Solution 4

SQL

<pre lang="xml">
Step 1] Go to the respective path for example D:\...\Images
Step 2] Open web.config and comment authorization/allow for specific users
</pre>

Posted 4-Sep-14 19:11pm

Rajendra Varadaraju

Solution 6

Right click on folder and choose Properties.

In Security tab add ‘IUSER’ and 'NETWORK SERVICE' and give full control to both user.

Posted 17-Nov-14 19:00pm

AjeetYadav

Solution 8

Another solution to the above error is;
1. Open IIS Manager and select the website that is causing the 401
2. Open the "Authentication" property under the "IIS" header
3. Click the "Windows Authentication" item and click "Advanced Settings" from the right
4. Set "Extended Protection" to "OFF"

Posted 21-Feb-16 6:43am

nAggIs

Updated 21-Feb-16 6:45am

v3

Add a Solution

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

sanjayv.gade · Accepted Answer · 2012-07-10T01:46:00

Solution 1

Issue solved:
1. Open iis and select the website that is causing the 401
2. Open the “Authentication” property under the “IIS” header
3. Click the “Windows Authentication” item and click “Providers”
4. Move NTLM at top
and BAM that's fixed it.

Posted 10-Jul-12 1:46am

sanjayv.gade

Comments

Ahmed M. Gamil 15-Sep-14 4:44am

I followed the approach in the solution above but the website kept prompting me with a dialogue box that asks for a username and password but whenever I write them in that box it keeps reappearing.. Any ideas ?!

dsacker 29-Sep-15 16:30pm

A beautiful solution. Interestingly, my production and my development servers had exactly the same provider order, and prod was working while dev was not. I'm not sure whether some group policy, etc., was pushed that broke the dev pass-thru, but this fixed it. Thank you.

mraect 14-Dec-17 8:21am

I don't have "Windows Authentication" at "Authentication" property.
Solution 7 solve it for me

401 - Unauthorized: Access is denied due to invalid credentials

6 solutions

Solution 1

Solution 7

Solution 12

Solution 4

Solution 6

Solution 8

Add your solution here

Preview 0

401 - Unauthorized: Access is denied due to invalid credentials

6 solutions

Solution 1

Solution 7

Solution 12

Solution 4

Solution 6

Solution 8

Add your solution here

Preview 0

Existing Members

...or Join us