HP Z VR Backpack G1 - Network Connectivity Wireless (WLAN)

Network connectivity wireless (WLAN)
Items Procedures
Symptoms
●
Unable to nd networks (yellow bang)
●
Connection dropouts
●
Slow performance
Possible causes
Network source, cable, connection, wireless module, driver, settings.
HP Support Assistant tool - No network detected in
HPSA
Wireless Adapter Properties - U-APSD support
Troubleshooting steps
1. Turn o the computer’s wired network (remove RJ-45 cable).
2. Examine environment for interference, such as cell phone or microwave, that
may emit high frequencies (above 1 GHz).
3. Verify wireless source by moving computer closer to the wireless base/router.
4. Test with dierent wireless networks and check with your IT department for
hardware compatibility, settings.
5. Verify that the wireless light is on. If the light is amber, press the wireless
button to enable the wireless device.
6. Test with HP Support Assistant in Windows.
7. Diagnose with HP PC Hardware Diagnostics (UEFI) to isolate a hardware issue
from a software issue.
8. Update drivers: Verify that wireless module is displayed in Device Manager
and be sure that wireless drivers are up to date using www.hp.com or HP
Support Assistant. If updating drivers does not help, try rolling back to
previous drivers.
9. Reset BIOS to Default: If other devices can connect to your wireless network,
but your computer cannot connect, a BIOS setting might be the cause of the
problem. Restore BIOS to default.
10. Congure power management advanced settings as necessary.
In the example to the left, U-APSD support (Unscheduled Automatic Power
Save Delivery) is changed to Disabled to resolve an incompatible access point.
If disabling U-APSD improves the throughput issue, check with the access
point provider for updated rmware that resolves the issue.
11. Test with veried working operating system or perform operating system
recovery to verify that the issue is not caused by customized settings.
12. Test with a veried working wireless module.
The sections below are intended for authorized service providers/technicians.
1. Verify that the wireless module and its antenna cables are fully inserted and
in good condition (see WLAN module removal and replacement section).
Reseat wireless module and antenna connection.
2. Verify module antenna cable connection are not loose.
3. Verify antenna cables are properly connected to the MAIN and AUX terminals
(see WLAN module removal and replacement section).
72 Chapter 7 Troubleshooting guide