Epson Powerlite 7850p Multimedia Projector Users Guide

							Presenting Through a Wireless Network81
3. For Key ID, highlight any of the options and press Enter if you’re 
using 40 bit WEP encryption. (This option is not available for 
128 bit WEP encryption.)
4. Highlight the 
Encryption key text box and press Enter. The 
cursor turns green to indicate you are in input mode. Check with 
your network administrator for directions on entering a key for 
your network, and follow these general guidelines:
■For 128 bit WEP encryption with hexadecimal input, enter 
26 characters, from 0 to 9 and from A to F.
■For 40 bit WEP encryption with hexadecimal input, enter 10 
characters, from 0 to 9 and from A to F.
■For 128 bit WEP encryption with text input, enter 13 letters 
of the alphabet.
■For 40 bit WEP encryption with text input, enter 5 letters of 
the alphabet.
5. When done making your settings, highlight the 
OK button at the 
top of the screen and press 
Enter. On the next screen, highlight 
the 
OK button again and press Enter to return to the EasyMP 
Network Screen.
Continue with the section below to set up your Windows computer 
for wireless projecting, or go to “Setting Up Your Macintosh for 
Access Point Mode” on page 87.
Configuring the Network Settings for Windows
Before connecting to the projector, you need to make sure the settings 
for your computer’s wireless card or adapter match the settings you 
entered for the projector. 
1. Access your wireless network Properties window. For example, in 
Windows XP you would click 
Start > Control Panel > Network 
and Internet Connections
. Then click the Network 
Connections
 icon.
note
To enter numbers with the 
remote control, press the 
Num button. When it lights 
up, numeric keypad mode is 
active. Press the
 Num 
button again to exit numeric 
keypad mode.
Text input for WEP 
encryption varies with 
different access points; check 
with your network 
administrator. Try 
Text1 
first. If that doesn’t work, 
try Text2 and then Text3. 
						

							82Presenting Through a Wireless NetworkYou see a screen similar to the this: 
2. Right-click the 
Wireless Network Connection icon and select 
Properties. 
You see a screen similar to this:
3. Click the 
Configure button.
note
On some Windows systems, 
you can right-click 
My Network Places or 
Network Neighborhood 
on the desktop and select 
Properties.
Right-click and select 
Properties
Click here 
						

							Presenting Through a Wireless Network83
4. Click the Advanced tab. You see a screen like this:
5. Check your wireless card or adapter’s device settings. (Depending 
on the type of card or adapter you’re using, some of the settings 
may be different than those listed here.)
■Set the network type to Infrastructure. 
■Set the SSID to match the name assigned to the access point 
(which should also be the projector’s ESSID)—for example, 
CONF ROOM. 
■Make sure encryption is Disabled. 
6. Click the 
General tab and make sure that your wireless card or 
adapter is enabled. 
7. When done making the settings, click 
OK to close the wireless 
properties dialog box.  
						

							84Presenting Through a Wireless Network8. Right-click the 
Wireless Network Connection icon again and 
select 
Properties. You see this screen:
9. Select 
Internet Protocol as shown above, then click the 
Properties button. 
You see this screen: 
						

							Presenting Through a Wireless Network85
10. If your access point uses DHCP, select Obtain an IP address 
automatically
. Otherwise select Use the following IP address 
and enter the required information: 
■IP address: Type in the IP address you want to assign to the 
computer. It must be formatted like other addresses on the 
network; usually the first three segments (XXX.XXX.XXX) 
match the first three segments of the access point’s IP address.
■Subnet mask: For example: 255.255.255.000, but this 
depends on how your network is set up.
■Default gateway: Enter the IP address that was assigned to 
the access point when it was set up. 
11. When done making these settings, click 
OK. 
12. Click the 
Wireless Networks tab. 
(If you don’t see this tab, you may need to enable your wireless 
card or adapter by clicking 
Configure to access the device 
settings; then follow any instructions on the screen to enable the 
device.)
Once you click the 
Wireless Networks tab, you see this screen:
note
For specific details about 
your network, please consult 
your network administrator.
note
If you don’t know your 
gateway or access point 
address, see page 86.  
						

							86Presenting Through a Wireless Network13. Verify that you’ve enabled your computer’s connection to the 
access point. It should be listed as shown above, with the small 
icon next to it, indicating a connection. 
If it’s not listed, click 
Configure and then type the name of your 
access point. 
14. When done making your settings, click 
OK to close the dialog 
box. 
Now you’re ready to connect to the projector. See “Projecting 
Wirelessly” on page 89. 
Checking the Gateway IP Address on Windows
If you’re entering IP addresses manually and need to find out the 
gateway IP address (the IP address of your access point), make sure the 
wireless connection to the access point is currently active, as described 
in the previous section. Then follow these steps:
1. Access your wireless network Properties window. For example, in 
Windows XP you would click 
Start > Control Panel > Network 
and Internet Connections
. Then click the Network 
Connections
 icon. 
You see a screen similar to this:
note
If you cannot identify the 
gateway address using this 
Windows utility, use the 
administrator’s utility 
software that came with 
your access point. 
Right-click and select Status 
						

							Presenting Through a Wireless Network87
2. Right-click the Wireless Network Connection icon and select 
Status. Then click the Support tab. 
The gateway’s IP address is listed as shown:
Setting Up Your Macintosh for Access Point Mode
Your AirPort software is automatically configured to allow your 
Macintosh to detect Access Point networks. Typically, you need only 
select your AirPort network name from the AirPort status menu on 
the Macintosh menu bar.
If you’re having problems connecting to the projector, follow these 
steps:
1. From the Apple pull-down menu, select 
System Preferences. 
Then double-click the 
Network icon. You see the Network 
settings window.
Gateway address 
						

							88Presenting Through a Wireless Network2. Make sure Location is set to 
Automatic.
3. Select 
Network Port Configurations in the Show pull-down 
menu.
4. Under Port Configurations, select 
AirPort.
5. Click 
Apply Now. Then close the window.
6. Start the AirPort Admin utility. Select your base station, then 
click 
Configure.
7. On the AirPort tab, make sure your AirPort network name 
matches your projector’s ESSID. If not, enter the projector’s 
ESSID in the AirPort Network text box and click 
Update.
8. If you turned DHCP on in your projector’s advanced menu, click 
the Network tab and make sure the 
Distribute IP addresses 
check box is selected. If you need to select it, click 
Update.
Select 
Automatic 
Select Network Port 
Configurations 
then select AirPort
note:
If you don’t need the other 
network ports, disable them 
by deselecting their check 
boxes. If more than one 
network port is enabled, the 
projector software warns you 
to turn off AirPort when you 
first connect the projector. 
Disregard this message.
Your AirPort network and 
base station names may be 
different. To check or change 
your AirPort network name, 
start the AirPort Admin 
utility, select your base 
station, and click 
Configure. Click Show All 
Settings, then make any 
changes you want on the 
AirPort tab.
If you’re connecting to your 
projector in static IP mode, 
deselect the 
Distribute IP 
addresses
 check box. Make 
sure your projector’s gateway 
address is identical to the base 
station’s IP address, and the 
first three segments of the 
projector’s IP address are 
identical to the first three 
segments of the base station’s 
IP address. 
						

							Presenting Through a Wireless Network89
9. Click the AirPort icon on the menu bar at the top of the 
Macintosh desktop. You see the AirPort status menu:
10. Check to make sure AirPort is turned on.
11. Select the name of your AirPort network.
Projecting Wirelessly
Once you’ve started EasyMP and set up your projector and computer 
in either Ad Hoc mode or Access Point mode, follow these steps to 
start NS Connection and project wirelessly. 
1. Make sure you’ve installed your wireless 802.11b card (see 
page 68).
2.Windows: Select 
EMP NS Connection from the Start menu.
Macintosh OS X: Double-click the 
EMP NS Connection icon in 
your Applications folder. 
						

							90Presenting Through a Wireless NetworkThe first time you start NS Connection, you may see a dialog box 
asking you to select your network. Select the IP address for your 
computer’s network card and click 
OK.
You see the screen below. (If you have previously started NS 
Connection, this is the first screen you see.)
If the connection is working properly, you see your projector 
listed. If you have additional EPSON projectors on the network, 
they are also listed, along with their status. 
The color of the status icon next to each projector’s name 
indicates its status:
■Gray: the projector is not connected
■Orange: the projector is connected to another computer
■Green: the projector is connected to your computer.
note
If you don’t see your network 
adapter’s IP address, allow a 
minute for it to appear. If 
your access point or AirPort 
base station uses DHCP 
(
Distribute IP addresses 
setting is enabled for 
AirPort), sometimes it takes 
a minute for the server to 
pick up the IP address.
Once you’ve selected the IP 
address for your network 
adapter, you won’t see the 
Switch network dialog box 
when you start NS 
Connection. If you want to 
change to a different 
network adapter, click 
Extension on the EMP NS 
Connection dialog box, then 
click 
Switch LAN on the 
extension dialog box.
Select projector
This box indicates 
projector status