Network Load Balancing and Kerberos

Hello,

I have setup a SharePoint 2010 Environment where i have two WFE's configured on a NLB cluster.

In a test i discovered that only one node is working. When i stop the working node i get the following error in the eventlog:

Source: LSASRV, EventID 6037

"The program w3wp.exe, with the assigned process ID 4224, could not authenticate locally by using the target name HTTP/intranet.testcorp.local. The target name used is not valid. A target name should refer to one of the local computer names, for example, the DNS host name.
 
 Try a different target name."

If i resume the working node and stops this one, it just fly's through.

Any ideas ?