I have a notebook running Vista Business which is configured in a
workgroup. It regularly moves between two networks at different sites,
one connected by Cat5 and the other by 802.11B wireless. Each time the
notebook is connected to the alternate network, it loses the ability
to print to printers connected by Standard TCP/IP Ports. Attempting to
print results in a message "Operation could not be completed (error
0x0000007e)". The only solution is to delete the printers and ports
and recreate them. Often the print spooler will crash and one or more
reboots may be required as well.

In addition to this, one network has a Dymo Label printer that is
connected to the notebook by USB. With this printer correctly defined
and working, if it is disconnected and the notebook taken to the other
network, when it returns and the label printer is reconnected, a
second copy of the printer definition is automatically created and
neither definition actually works. Again, the only solution is to
disconnect the printer, delete both definitions and then plug the
printer in again which will cause it to be correctly defined.

Has anyone experienced anything like this? Any ideas how to resolve
these problems? Another technician believes that these problems will
go away when the notebook is joined to a domain at one of the sites
but I doubt this very much. Any opinions?

Regards

Tim