What are the common NTLM authentication issues in SharePoint?
1. Users cannot log in at all. They receive authentication prompts and then a 401 – Access Denied. 2. Users receive (seemingly) random authentication prompts when browsing SharePoint sites. One thing to keep in mind when troubleshooting NLTM issues with SharePoint is that the problem is almost always external to SharePoint.
Is it possible to switch SharePoint to Kerberos?
Switch SharePoint (and other applications) to use Kerberos authentication. This cuts down significantly on Netlogon service traffic, in most cases relieving the bottleneck.
Is there a NTLM handshake for SharePoint 2013?
Note: See “other troubleshooting tips” section below for details on the “NTLM Handshake”. I know there’s some documentation out there that suggests that session persistence / affinity / “sticky sessions”, is no longer required with the advent of Distributed Cache in SharePoint 2013 and above.
Do you need sticky sessions in SharePoint 2013?
I know there’s some documentation out there that suggests that session persistence / affinity / “sticky sessions”, is no longer required with the advent of Distributed Cache in SharePoint 2013 and above. However, that is not the case, at least not as long as you’re using NTLM.
Is there a way to turn off NTLM in SharePoint?
Aside from turning it on or off, there’s not really anything you can configure inside of Sharepoint to make NTLM work better or worse. To enable NTLM, this is all you do within Central Administration | Manage Web Applications | | Authentication Providers:
Why do I get multiple login prompts for SharePoint?
Then users will be prompted for the Sharepoint site, and for the external content as well. This is usually the cause for multiple login prompts. That is the behavior of a site that is accessible outside the network with intgrated authentication.