How to increase the number of keys in NTLM?

I think you cannot, but take a closer look here: http://blogs.msdn.com/b/openspecification/archive/2010/04/20/ntlm-keys-and-sundry-stuff.aspx and on the links in the article.

the question is why do you need more keys in ntlm it will not work as you cannot have more than one ntnl setting

We find out that the problem that some users are having to access a specific application could be with profiles because all the users reporting problems had their profile deleted. I asked the Admin to copy a profile from a machine that had the application working in a machine that wasn’t working, for
the same user. It worked! The theory is that NTLM doesn’t have enough keys to give to users, since XP used a roaming profile, which means the profile were stored in a server and now with a migration we did to Windows 7 the profile are stored in each machine. That’s why if I
for example, that can access application in my machine try to access the application in another machine it will not work.

One possible solution is to increase the number of keys provided by NTLM. I don’t know if and how it would be possible.

Any more thoughts on this?

It seems to be browser. Any thoughts?

Please find attached gpresult and kindly let me know if you need additional information. I don't know if I am using V2 or V1 profile version. The application is stored in Linux, don't know the version.

(attached file removed at asker's request.  letenglandshake, EE Moderator)

It is a php application.

I found the php application is not saving a cookie file in the internet temporary file. Any reason why?

I will give points to the person that asnwered the question.