Lexmark 4800 Series - Manual (Page 109)

Move your computer and/or printer
Move the computer and/or printer closer to the wireless access point (wireless router). Although the possible distance
between devices in 802.11b or 802.11g networks is 300 feet, the effective range for optimal performance is generally
100–150 feet.
You can find the signal strength of the network on the network setup page. For information on how to print a setup
page, see “Printing a network setup page” on page 34.
Check security keys
Make sure security keys are correct. For more information, see “Check your security keys” on page 106.
Check MAC address
If your network uses MAC address filtering, provide the MAC address for the printer to your network. If you need
help finding the MAC address, see “Finding the MAC address” on page 33.
Ping the wireless access point (wireless router) to make sure the network is working
1 If you do not already know it, find the IP address of the access point.
a Click:
• In Windows Vista: Œ All Programs Œ Accessories Œ Command Prompt.
• In Windows XP and earlier: Start Œ Programs or All Programs Œ Accessories Œ Command
Prompt.
b Type ipconfig.
c Press Enter.
• The “Default Gateway” entry is typically the wireless access point (wireless router).
• The IP address appears as four sets of numbers separated by periods, such as 192.168.0.100. Your IP
address might also start with the numbers 10 or 169. This is determined by your operating system or
wireless network software.
2 Ping the wireless access point (wireless router).
a Click:
• In Windows Vista:
ΠAll Programs ΠAccessories ΠCommand Prompt.
• In Windows XP and earlier: Start Œ Programs or All Programs Œ Accessories Œ Command
Prompt.
b Type ping followed by a space and the IP address of the wireless access point (wireless router). For
example:
ping 192.168.0.100
c Press Enter.
3 If the wireless access point (wireless router) responds, you will see several lines appear that start with “Reply
from”. Turn off and restart the printer.
4 If the wireless access point (wireless router) does not respond, it will take several seconds and then you will see
“Request timed out.”
Try the following:
a Click:
• In Windows Vista: Œ Control Panel Œ Network and Internet Œ Network and Sharing Center
• In Windows XP and earlier: Start Œ Settings or Control Panel Œ Network Connection
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