HP C7280 User Guide - Page 185

To check your LAN card Windows Vista, Device Manager

Page 185 highlights

Chapter 15 Solution: Check the following cables to ensure they are connected properly. • Cables between the HP All-in-One and the hub or router • Cables between the hub or router and your computer • Cables to and from your modem or HP All-in-One Internet connection (if applicable) Cause: Your computer's Local Area Network card (LAN card) is not set up properly. Solution: Make sure that your LAN card is set up properly. To check your LAN card (Windows 2000 and XP) 1. Right-click My Computer. 2. In the System Properties dialog box, click the Hardware tab. 3. Click Device Manager. 4. Make sure your card shows up under Network Adapters. 5. Refer to the documentation that came with your card. To check your LAN card (Windows Vista) 1. On the Windows taskbar, click Start, Computer, and then click Properties. 2. Click Device Manager. 3. Make sure your card shows up under Network Adapters. 4. Refer to the documentation that came with your card. Cause: You do not have an active network connection. Solution: Check to see if you have an active network connection. To see if you have an active network connection ▲ Check the two Ethernet indicator lights on the top and bottom of the RJ-45 Ethernet jack on the back of the HP All-in-One. The lights indicate the following: a. Top light: If this light is a solid green, the device is properly connected to the network, and communications have been established. If the top light is off, there is no network connection. b. Bottom light: This yellow light flashes when data is being sent or received by the device over the network. To establish an active network connection 1. Check the cable connections from the HP All-in-One to your gateway, router, or hub to ensure connections are secure. 2. If the connections are secure, turn off the power on the HP All-in-One, and then turn it on again. Press the On button on the control panel to turn the HP All-inOne off, and press it again to turn the device on. Also, turn off the power on your router or hub, and then turn it on again. Cause: You were able to connect the HP All-in-One to the network previously, but now it will not connect. Troubleshooting 184 Troubleshooting

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Solution:
Check the following cables to ensure they are connected properly.
Cables between the HP All-in-One and the hub or router
Cables between the hub or router and your computer
Cables to and from your modem or HP All-in-One Internet connection (if
applicable)
Cause:
Your computer's Local Area Network card (LAN card) is not set up properly.
Solution:
Make sure that your LAN card is set up properly.
To check your LAN card (Windows 2000 and XP)
1.
Right-click
My Computer
.
2.
In the
System Properties
dialog box, click the
Hardware
tab.
3.
Click
Device Manager
.
4.
Make sure your card shows up under
Network Adapters
.
5.
Refer to the documentation that came with your card.
To check your LAN card (Windows Vista)
1.
On the Windows taskbar, click
Start
,
Computer
, and then click
Properties
.
2.
Click
Device Manager
.
3.
Make sure your card shows up under
Network Adapters
.
4.
Refer to the documentation that came with your card.
Cause:
You do not have an active network connection.
Solution:
Check to see if you have an active network connection.
To see if you have an active network connection
Check the two Ethernet indicator lights on the top and bottom of the RJ-45
Ethernet jack on the back of the HP All-in-One. The lights indicate the following:
a
.
Top light: If this light is a solid green, the device is properly connected to the
network, and communications have been established. If the top light is off,
there is no network connection.
b
.
Bottom light: This yellow light flashes when data is being sent or received by
the device over the network.
To establish an active network connection
1.
Check the cable connections from the HP All-in-One to your gateway, router, or
hub to ensure connections are secure.
2.
If the connections are secure, turn off the power on the HP All-in-One, and then
turn it on again. Press the
On
button on the control panel to turn the HP All-in-
One off, and press it again to turn the device on. Also, turn off the power on your
router or hub, and then turn it on again.
Cause:
You were able to connect the HP All-in-One to the network previously, but
now it will not connect.
Chapter 15
184
Troubleshooting
Troubleshooting