Epson Powerlite 755c Multimedia Projector Users Guide

							Presenting Through a Wireless Network61
8. If your access point assigns IP addresses automatically, turn on 
DHCP. Otherwise, turn off DHCP and enter the following 
information manually: 
■IP address: Type in the IP address you want to assign to the 
projector. It must be formatted like other addresses on the 
network. The last section should be unique. 
■Subnet mask: For example: 255.255.255.000, but this 
depends on how your network is set up.
■Gateway address: Enter the IP address that was assigned to 
the access point or AirPort base station when it was set up. 
9. If you want to monitor the projector using HP OpenView,
™ 
you’ll need to enter at least one trap IP address. See page 122 for 
details on monitoring the projector. 
10. When you’re done making these settings, highlight the 
OK button 
at the top of the screen (you can either use the   button on the 
remote control or press   to highlight it), then press 
Enter. 
Highlight the 
OK button again and press Enter to return to the 
main EasyMP Network Screen. 
Now you’re ready to set up your computer for wireless projecting. Go 
to “Configuring the Network Settings for Windows” below, or go to 
“Setting Up Your Macintosh for Access Point Mode” on page 68. If 
you need to use WEP, WPA, or LEAP security options, see page 70 to 
set up the option that your network uses on the projector. 
note
For specific details about 
your network, please consult 
your network administrator.
If you don’t know your 
gateway or access point 
address, see page 67. If you’re 
using AirPort, start the 
AirPort Admin utility, select 
your base station and click 
Configure. Then click the 
Network tab to see your 
base station’s IP address. 
						

							62Presenting Through a Wireless Network
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. You see a screen similar to this: 
2. Right-click the 
Wireless Network Connection icon and select 
Properties. 
note
On some Windows systems, 
you can right-click 
My Network Places or 
Network Neighborhood 
on the desktop and select 
Properties.
Settings may vary, 
depending on your wireless 
network adapter. See the 
documentation for your 
adapter for more 
information. 
Right-click and select 
Properties 
						

							Presenting Through a Wireless Network63
You see a screen similar to this:
3. Click the 
Configure button.
4. Click the 
Advanced tab. You see a screen like this:
Click here 
						

							64Presenting Through a Wireless Network5. Check your wireless card’s 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). 
■Make sure Encryption is Disabled if you have not set up 
encryption on the projector. 
6. Click the 
General tab and make sure that your wireless card or 
adapter is enabled. 
7. When you’re done, click 
OK to close the wireless properties dialog 
box. 
8. Right-click the 
Wireless Network Connection icon again and 
select 
Properties. You see this screen: 
						

							Presenting Through a Wireless Network65
9. Select Internet Protocol and click the Properties button. You 
see this screen:
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. The last section must be unique.
■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 you’re done, 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.)
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 67.  
						

							66Presenting Through a Wireless NetworkYou see a screen like this:
13. Verify that you’ve enabled your computer’s connection to the 
access point. It should be listed with the small  icon next to it, 
indicating a connection. 
If it’s not listed, click 
Configure and type the name of your access 
point. 
14. When you’re done making settings, click 
OK to close the dialog 
box. 
Now you’re ready to connect to the projector. See “Projecting 
Wirelessly” on page 74.  
						

							Presenting Through a Wireless Network67
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:
2. Right-click the 
Wireless Network Connection icon and select 
Status. 
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 
						

							68Presenting Through a Wireless Network3. 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 only need to 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. 
2. Click the 
Network icon. You see the Network settings window.
Gateway address 
						

							Presenting Through a Wireless Network69
3. Make sure Location is set to Automatic.
4. Select 
Network Port Configurations in the Show pull-down 
menu.
5. Under Port Configurations, select 
AirPort.
6. Click 
Apply Now. Then close the window.
7. Start the AirPort Admin utility. Select your base station, then 
click 
Configure.
8. 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. 
9. If you turned DHCP on in your projector’s advanced menu, click 
the Network tab and make sure the 
Distribute IP addresses 
checkbox 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 
checkboxes. 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 
checkbox. 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. 
						

							70Presenting Through a Wireless Network10. Click the AirPort icon on the menu bar at the top of the 
Macintosh desktop. You see the AirPort status menu:
11. Check to make sure AirPort is turned on.
12. Select the name of your AirPort network. 
Using Wireless Security Options 
You can use the following security options when connecting to the 
projector wirelessly: WEP encryption, WPA security, or LEAP 
authentication. To set these security features up on your wireless 
network, see your documentation or get help from your network 
administrator. See the following sections to enable the security option 
on your projector: 
■“Adding WEP Encryption” on page 71
■“Adding WPA Security” on page 72
■“Adding LEAP Authentication” on page 73