I have two computers connected to a D-Link base station/hub. One PC - the file and printer server - is connected via cable and a notebook in WLAN. For apparently no obvious reason, the laptop's connection to the server disappears and e.g. booting the server doesn't resolve the problem. ZA Pro Lookup command can't find the server, but Ping to the IP address works OK and so does the Internet access.

Than, after approx. two hours, the connection re-appears.

Operating System:Windows 2000 Pro
Product Name:ZoneAlarm Pro
Software Version:6.0