This issue could be due to corrupt wireless drivers or corrupt BIOS settings or hardware malfunction of the wireless card. To isolate the issue, perform the steps provided below.
NOTE: If your notebook model is HP Pavilion DV6449US PC Notebook, then only perform the below steps. If your notebook model is different, then I recommend you to not to update BIOS and install the wireless.
Step 1: Uninstall and reinstall wireless drivers
Please follow the steps listed below to uninstall the wireless drivers from the notebook:
1.
Click Start.
2.
Type Device Manager in the Start Search box,
3.
Click Device Manager from the results list to open Device Manager window. .
4.
Now click the plus sign (+) next to Network adapters to display the installed adapters.
5.
Right click on the Wireless LAN adapter(if listed) and select Uninstall. When
prompted, click OK to confirm removal.
6.
Follow onscreen instructions to complete uninstallation process.
7.
Restart the notebook. The system will reinstall the generic drivers during startup.
Follow the instructions on the Startup Wizard.
Now download and install the latest drivers for the Wireless network adapter from the web link provided below:
ftp://ftp.hp.com/pub/softpaq/sp41501-42000/sp41675.exe
NOTE: Clicking the link may give an error indicating it is invalid.
Copy and paste the entire link in a new browser window.
Installation Instructions:
1. Download the Softpaq .EXE file to a directory on your hard drive.
2. Execute the downloaded file and follow the on-screen instructions.
Step 2: Update BIOS
Download and install BIOS update on the notebook from the web link provided below.
ftp://ftp.hp.com/pub/softpaq/sp42501-43000/sp42854.exe
NOTE: Clicking the link may give an error indicating it is invalid.
Copy and paste the entire link in a new browser window.
Installation Instructions:
1. Download the Softpaq .EXE file to a directory on your hard drive.
2. Execute the downloaded file and follow the on-screen instructions.
If the issue persists even after performing the above steps, then I recommend you to remove and reseat the wireless network adapter of the notebook and then check for the issue. To do this, you can refer the service manual provided below:
http://h10032.www1.hp.com/ctg/Manual/c01035677.pdf
Refer page no: 135 & 136
NOTE: PDF manuals require the Adobe Acrobat Reader for viewing and printing.
Now check for the issue with the wireless light indicator. If the issue persists, then it is clear that the issue is due to hardware malfunction of the wireless network adapter on the notebook and it requires a detailed onsite diagnosis by a service technician.
I hope the information provided would be helpful to resolve the issue with your notebook.
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