Website hosted in particular windows server prompting continuous domain authentication

Question

Hi
There are 2 domains A & B .In domain A, there are few websites hosted in 4 windows servers identical in software and hardware configurations ....mean to say in IIS Managers , all the settings are same.I am not aware of IIS technically. but all the settings
visually are the same.
The problem 2 days before happened the Domain B users (except 2 users)are continuously prompted for the domain authentication when they try to access this website through the URL which they always use when the URL hits one particular server out of these
4 windows 2008 R2 servers
The sharepoint site admin cut a ticket to Windows team with the comment : Check this BAD Windows server
Error posted is :
Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          3/14/2015 8:14:04 AM
Event ID:      4625
Task Category: Logon
Level:         Information
Keywords:      Audit Failure
User:          N/A
Computer:      xxxxxx
Description:
An account failed to log on.
Subject:
                Security ID:                         NULL SID
                Account Name:                 -
                Account Domain:                             -
                Logon ID:                             0x0
Logon Type:                                       3
Account For Which Logon Failed:
                Security ID:                         NULL SID
Account Name:
                Account Domain:                             xxxxxxxx
Failure Information:
Failure Reason:                                The user has not been granted the requested logon type at this machine.
                Status:                                  0xc000015b
                Sub Status:                         0x0
Process Information:
                Caller Process ID:             0x0
                Caller Process Name:     -
Network Information:
                Workstation Name:        xxxxxxxxxxxxxxx
                Source Network Address:            xxx.xxx.xxx.xxx
                Source Port:                       53827
Detailed Authentication Information:
                Logon Process:                  NtLmSsp
                Authentication Package:               NTLM
                Transited Services:          -
                Package Name (NTLM only):       -
                Key Length:                        0
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or
Services.exe.
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
The Process Information fields indicate which account and process on the system requested the logon.
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
                - Transited services indicate which intermediate services have participated in this logon request.
                - Package name indicates which sub-protocol was used among the NTLM protocols.
                - Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
If the problem existed in this particular server, how those exceptional 2 users are having the access.I agree they are the sharepoint admins...
How and where to check the investigation?
Thanks & Regards S.Swaminathan Live & let others live!!!

Answer 1

Hi,
>>The problem 2 days before happened the Domain B users (except 2 users)are continuously prompted for the domain authentication
Based on the description, we can check the following article to see if it's helpful.
Troubleshooting: I Keep Getting Prompted for a User Name and Password
https://msdn.microsoft.com/en-us/library/cc750194.aspx
Besides, for this question, in order to get better help, we can ask for suggestions in the following two forums.
IIS Forum
http://forums.iis.net/
SharePoint Forum
https://social.technet.microsoft.com/Forums/office/en-US/home?category=sharepoint
Best regards,
Frank Shen
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