I have the following issue; I updated a machine running three servers (PDC, BDC and RDS) from VMWare 5.5 tot 6.5. Update went okay; updated VMWare tools. Network uses VMXnet 3, so VMware tools updated the driver. After booting I needed to configure the network cards again (the Ip adres was gone, as was DNS settings, gateway etc.). Rebooted and everything seems fine. But clients since then have had issues where connecting to a share (shared through Group Policy) works, but after some time the system returns an error that the share is inaccecable because of failed authentication. I also use roaming profile settings; so the whole client gives error (desktop, setting etc. all become inavailable). When login in the shares are always correctly made. One exception being; i map the home directory through AD settings (user > profile) directly. This mapping doesn't work, without any clear error.
I checked a lot of things; a lot of error seemed to relate to group policy; so I reset the complete set; made several authorative restores; disconnected client from the domain, deleted local policy and added to domain again. Nothing helps structurally. So I'm hoping somebody can help point to the one thing I'm missing in this case.