I have a customer site where a server app runs on a PC running XP Pro and the client app runs on several othe PCs running XP Pro. There are also a couple of iMac computers on the same LAN which run the client app. As far as the server/client app goes, all works fine. We have setup a share on one of the iMacs. A scheduled batch file copies the 2 data files from the server PC to the iMac share after hours. This has been working fine. The iMac user checks the date/time of the data files in his share each day to make sure the overnight backup (copy) worked.
If for some reason there was a problem, he can look across the LAN from his iMac and pull a copy out of the server into his folder. This has also been working fine for some time.
Recently, the overnight copy stopped working. As far as we know, nothing has been changed by anyone on either of the computers in question - except for possible auto s/w updates.
Now when the user tires to open the server from his iMac, it fails to connect. The server PC appears in his list of shared computers. The same thing happens if he tries to connect to any of the windows PCs. If, we try to browse to the server name in his browser, we still cannot connect, but if we put in the IP address of the server, we can connect straight away.
The IP address of the server has not changed.
It sounds like a DNS problem within the LAN between the iMac and the PC??? The ADSL modem/router provides DHCP services and it is the default gateway for the iMac, which also can connect happily to the net. The iMac can also connect to the server from the client app, as it always has been able to.
How can I refresh the DNS within the LAN? Or is there something else that I might need to do here?
Background info: The site is a medical practice. The server/client app is the practice managemnet s/w and was originally Mac only s/w. The site was having probs finding local support for Macs. The s/w was re-written for Windows. At that point I was asked to provide a bunch of PCs and setup the new LAN with the new s/w (about 5 years ago).
One of the Doctors later bought a new iMac when his replacement PC eventually died, because he never really liked the PC. I hav very little recent knowledge with Macs, but he user is fairly competent.