Working with Netgear support we found that manually setting up the
TCP/IP port seems to eliminate the occasional reprint problem:
Setting up Netgear WGPS606 for TCP/IP using Vista Home Premium:

1. You should be logged on with administrator privileges.Get IP address
of the print server.

a. Run the cd of the print server to get the IP address of the print
server.

2. Set up a TCP/IP port on the computer using the following steps:

a. Click on start, then Control Panel.
b. Select Classic View.
c. Double click on Printers.
d. Right click anywhere in the space below the printer icons.
e. Click Run as Administrator.
f. Click Add Printer (ok permission).
g. Click Add a Network, Wireless, or Bluetooth Printer.
h. Select Stop.
i. Select The Printer I Want Isn't Listed.
j. Select Add a Printer Using TCP/IP Address or Host Name.
k. Click Next.
l. Under Device Type select TCP/IP Device.
m. In Hostname or IP address enter IP address obtained from cd run ie;
192.168.1.103.
n. Uncheck Query the printer and automatically select the driver to
use.
o. Click Next.
p. It detects TCP/IP port - may take a few minutes.
q. Select Custom.
r. Click Settings.
s. In Protocol select LPR.
t. In Que Name, for port 1 type L1, for port 2 type L2, (referencing
the port on print server),
Check LPR Byte Counting Enabled.
u. Click Ok.
v. Click Next.
w. Find Printer Manufacturer and Printer in List, Click Next.
x. Select use current or replace driver.
y. Alter name and/or select as default printer if desired.
z. Print test page if desired and click Finish.