Solving Front Panel Component Problems; Solving Internet Access Problems - HP Compaq Pro 4300 Maintenance And Service Manual

Solving Front Panel Component Problems

If you encounter problems with devices connected to the front panel, refer to the common causes and
solutions listed in the following table.
A USB device, headphone, or microphone is not recognized by the computer.
Cause
Device is not properly connected.
The device does not have power.
The correct device driver is not installed.
The cable from the device to the computer does not work.
The device is not working.
USB ports on the computer are disabled in Computer Setup.

Solving Internet Access Problems

If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the
common causes and solutions listed in the following table.
Unable to connect to the Internet.
Cause
Internet Service Provider (ISP) account is not set up
properly.
Web browser is not set up properly.
Cable/DSL modem is not plugged in.
Cable/DSL service is not available or has been interrupted
due to bad weather.
The CAT5 UTP cable is disconnected.
Solution
1. Turn off the computer.
2. Reconnect the device to the front of the computer and
restart the computer.
If the USB device requires AC power, be sure one end is
connected to the device and one end is connected to a live
outlet.
1. Install the correct driver for the device.
2. You might need to reboot the computer.
1. If possible, replace the cable.
2. Restart the computer.
1. Replace the device.
2. Restart the computer.
Run the Computer Setup utility and ensure that the USB
ports are set to Enabled in Security > USB Security.
Solution
Verify Internet settings or contact your ISP for assistance.
Verify that the Web browser is installed and set up to work
with your ISP.
Plug in cable/DSL modem. You should see a "power" LED
light on the front of the cable/DSL modem.
Try connecting to the Internet at a later time or contact your
ISP. (If the cable/DSL service is connected, the "cable" LED
light on the front of the cable/DSL modem will be on.)
Connect the CAT5 UTP cable between the cable modem
and the computers's RJ-45 connector. (If the connection is
good, the "PC" LED light on the front of the cable/DSL
modem will be on.)
Solving Front Panel Component Problems 143