HP Color LaserJet Enterprise M455 Color LaserJet Enterprise M455 User Guide - Page 132

The network does not appear in the wireless networks list, The wireless network is not functioning

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The network does not appear in the wireless networks list Follow these steps when the network does not appear in the wireless network list on your computer or mobile device. ● Make sure the wireless router is turned on and has power. ● The network might be hidden. However, you can still connect to a hidden network. Make sure the router/access point is advertising the SSID by checking for its SSID in the available networks seen by your mobile device. The wireless network is not functioning Complete the following steps to ensure that the network is functioning correctly. 1. For printers that do not support simultaneous wired and wireless connections, make sure that the network cable is disconnected. 2. To verify if the network has lost communication, try connecting other devices to the network. 3. Test network communication by pinging the network. a. Open a command-line prompt on your computer. ● For Windows, click Start, click Run, type cmd, and then press Enter. ● For macOS, go to Applications, then Utilities, and open Terminal. b. Type ping followed by the router IP address. c. If the window displays round-trip times, the network is working. 4. Make sure that the router or printer connects to the same network that the computer connects to. a. Print a configuration page. b. Compare the service set identifier (SSID) on the configuration report to the SSID in the printer configuration for the computer. c. If the numbers are not the same, the devices are not connecting to the same network. Reconfigure the wireless setup for the printer. Reduce interference on a wireless network The following tips can reduce interference in a wireless network: ● Keep the wireless devices away from large metal objects, such as filing cabinets, and other electromagnetic devices, such as microwaves and cordless telephones. These objects can disrupt radio signals. ● Keep the wireless devices away from large masonry structures and other building structures. These objects can absorb radio waves and lower signal strength. ● Position the wireless router in a central location in line of sight with the wireless printers on the network. 122 Chapter 6 Solve problems

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The network does not appear in the wireless networks list
Follow these steps when the network does not appear in the wireless network list on your computer or mobile
device.
●
Make sure the wireless router is turned on and has power.
●
The network might be hidden. However, you can still connect to a hidden network. Make sure the
router/access point is advertising the SSID by checking for its SSID in the available networks seen by your
mobile device.
The wireless network is not functioning
Complete the following steps to ensure that the network is functioning correctly.
1.
For printers that do not support simultaneous wired and wireless connections, make sure that the network
cable is disconnected.
2.
To verify if the network has lost communication, try connecting other devices to the network.
3.
Test network communication by pinging the network.
a.
Open a command-line prompt on your computer.
●
For Windows, click
Start
, click
Run
, type
cmd
, and then press
Enter
.
●
For macOS, go to
Applications
, then
Utilities
, and open
Terminal
.
b.
Type
ping
followed by the router IP address.
c.
If the window displays round-trip times, the network is working.
4.
Make sure that the router or printer connects to the same network that the computer connects to.
a.
Print a configuration page.
b.
Compare the service set identifier (SSID) on the configuration report to the SSID in the printer
configuration for the computer.
c.
If the numbers are not the same, the devices are not connecting to the same network. Reconfigure the
wireless setup for the printer.
Reduce interference on a wireless network
The following tips can reduce interference in a wireless network:
●
Keep the wireless devices away from large metal objects, such as filing cabinets, and other electromagnetic
devices, such as microwaves and cordless telephones. These objects can disrupt radio signals.
●
Keep the wireless devices away from large masonry structures and other building structures. These objects
can absorb radio waves and lower signal strength.
●
Position the wireless router in a central location in line of sight with the wireless printers on the network.
122
Chapter 6
Solve problems