freeradius authentication stops working after some time...

[Thomas Munck Steenholdt]

Hi List...

I've been having this strange issue, that I hope somebody in here will 
be able to assist me in solving.

I have a Linux machine (Ubuntu 9.10, 32 bit), running freeradius 2.1.0 
(ubuntu 9.10 version, but re-built with ssl), setup to provide 
authentication services for a wireless network using ntlm against a 
Windows 2008 AD.

On fresh reboot of the machine, everything works just fine. After some 
time, though, things start to fail (I'm not sure exactly how long it 
works, or even if the working period of time is the same every time, but 
I'd say roughly a days time).

Even when authentication is failing, wbinfo -t and ntlm_auth appears to 
be working and freeradius is still running. But it starts logging "Auth: 
Login incorrect:" errors.

Restarting the server makes things work again - every time.

Any idea where to look? Thanks in advance.

/Thomas