In order to set the WGPS606 up for the first time on Windows (XP, Vista or 7) you need to connect using an Ethernet cable plugged in to one of the ports on the back of the print server your computer.
The default username is ‘admin’ and password is ‘password’ as shown on the bottom of the device but the instructions do not seem to mention the IP address which is 192.168.0.102
There is no DHCP server built into this device either so you may need to set a fixed IP on the machine you are using to connect to it in order to establish communications.
Details about how to set your PC to a fixed IP address can be found here.
Once you have done that you should be able to access the built in control panel and set it up as required.
Once the device has been connected to the wireless network ensure you get a new IP address from your wireless router then disconnect the cable before trying to connect a PC to a printer port. If you don’t do this the setup program on the CD will connect the to the printers using the IP address accessible via the cable which may not be accessible via wireless.
The WGPS606 will work with Windows Vista but for some reason the setup program doesn’t. To get connected to the printer with Vista you will need to add a new port manually. There is an explanation of how to do this here
If you have Windows 7 the process is very similar.
If you are just intending to use the WGPS606 as a bridge the setup is the same but you will not need to worry about the printer aspects.