[Samba] RESOLVED: Linux/AD authentication stops working after ~5 minutes

[McGlorfin]

McGlorfin wrote:
> I'm trying to do something fairly simple: login to a Linux box using a
> Windows AD-based account. [...]

> [...] Is this more likely to be a
> misconfiguration or an issue with my version of Samba? 

After upgrading to version 3.0.21a, my problems have disappeared. The 
WHATSNEW file gives a hint as to the source of the problem:

   Common bugs fixed in 3.0.14a include:

     o Compatibility issues between Winbind and Windows 2003 SP1
       domain controllers (*2k3sp1*).

-McG