This problem occurs on a Windows 7 computer, every time it is rebooted it looses the network connection. Disabling and enabling the network card resolves the issue until the next reboot.
I have looked around and found some possible solutions involving turning off the Bonjour services on the computer.
I have not tried any solutions yet as most support is done remotely. Rebooting is obviously not a good idea as I then cannot get back on. I will try a few things when on site. It would be great if anybody has some further input or ideas regarding this issue.