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...

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...

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...

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...

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...

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...

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....

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...