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e Click TCP/IP.
• The IP address appears as four sets of numbers separated by periods, such as 192.168.0.100.
• The "Router" entry is typically the wireless access point (wireless router).
2 Ping the wireless access point (wireless router).
a From the Finder desktop, click Applications.
b From Applications, double-click Utilities.
c Double-click Network Utility, and then click Ping.
d Type the IP address of the wireless access point (wireless router) in the network address field. For example:
10.168.0.100
e Click Ping.
3 If the wireless access point (wireless router) responds, you will see several lines that display the number of bytes
received from the wireless access point (wireless router). This ensures that your computer is connected to the
wireless access point (wireless router).
4 If the wireless access point (wireless router) does not respond, nothing is displayed. You can use Network
Diagnostics to help resolve the problem.
Ping the printer
1 From the Finder desktop, click Applications.
2 From Applications, click Utilities.
3 Double-click Network Utility, and then click Ping.
4 Type the IP address of the printer in the network address field. For example:
10.168.0.101
5 Click Ping.
6 If the printer responds, you will see several lines that display the number of bytes received from the printer. This
ensures that your computer is communicating with your printer.
7 If the printer does not respond, nothing is displayed.
• Your computer might not be connected to the network. You can use Network Diagnostics to help resolve
the problem.
• You may need to change the wireless settings of your printer.
Run the Wireless Setup Assistant
1 From the Finder desktop, double-click the Lexmark 4800 Series folder.
2 Double-click Wireless Setup Assistant.
3 Follow the instructions on the computer screen.
Resetting an internal wireless print server to factory default settings
1 From the control panel, press or repeatedly until Setup appears.
2 Press .
3 Press or repeatedly until Network Setup appears.
4 Press .
Troubleshooting
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