suryashendage Student
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wireless network adapter:- wifi light is ON and its shows the wifi network but it can't connect.

pavillion D4A66PA#ACJ
Microsoft Windows 7 (64-bit)
Wirless network adapter:- wifi light is ON and its shows the wifi network but it can't connect, even I updated all network drivers. Is there problem in software or network adapter card? If problem in network adapter then which will buy?
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wireless network adapter:- wifi light is ON and its shows the wifi network but it can't connect.


Hi @suryashendage,


Welcome to the HP Community! A very good day to you. 🙂 Hope you are doing well. 🙂  I understand that you have Wi-Fi issues with the computer. I will be delighted to assist you. 🙂 


Superb assessment of the issue.  Awesome diagnosis and troubleshooting as well before posting. Kudos to you on that score. 🙂 You are a privileged HP customer and we value your relationship with HP greatly.  It is a genuine pleasure to share this platform with you. 🙂


For better clarity and to assist you better, I’d require more information regarding this:

  • When did this happen?
  • Did a software or windows update cause it?
  • Do other devices connect to the same network without hassles?


Please visit this link to troubleshoot the Wi-Fi connectivity issue.


Try this first: Use the HP Guided Solution

  • Step 1: Use automatic troubleshooting
  • Step 2: Reinstall the wireless network adapter driver
  • Step 3: Update wireless network drivers
  • Step 4: Check and reset hardware
  • Step 5: Perform a Microsoft System Restore
  • Step 6: Other things to try
  • After going through all the steps and reinstalling the operating system also, if the Wi-Fi does not connect, then the issue is with the Wi-Fi card and it needs to be replaced.
  • Before you reinstall the operating system, please backup all your data.


These wifi cards are compatible with your computer.


  • Atheros AR9485 802.11b/g/n 1x1 WiFi Adapter 675794-001
  • Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetooth 4.0 Combo Adapter 655795-001
  • Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Bluetooth 4.0 Combo Adapter 657325-001
  • Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC 670691-001
  • Atheros AR9565 802.11bgn 1x1 WiFi + BT4.0 combo Adapter 690019-001
  • Ralink RT3290LE 802.11bgn 1x1 Wi-Fi and Bluetooth 4.0 Combo Adapter 690020-001
  • Ralink RT5390R 802.11bgn 1x1 Wi-Fi Adapter 691415-001
  • Atheros AR9485 802.11b/g/n WiFi Adapter for use in Brazil 712639-201)
  • Realtek RTL8188EE 802.11bgn Wi-Fi Adapter 709848-001
  • The numbers at the end are part numbers for the cards. (those that end with 001)


Please visit the service manual and look up page# 49:

Page 50 shows you how to remove and replace the wifi card.

Please visit this link: to order the part. You could also check with a local Best Buy or staples technician.


Another workaround is to plug in a USB wireless dongle to one of the USB ports of the computer and connect to the Wi-Fi router and this is extremely cost effective.


Hope this helps.  Let me know how this goes. I genuinely hope the issue gets resolved without hassles and the unit works great. 🙂  Please reach out for any issues and I'll be there to assist you.  🙂


To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles. 🙂


Take care now and have a splendid week ahead. 🙂

Happy holidays to you and your family. 🙂



I am an HP Employee

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