Networks won't show

[Joker38]

This started just this week. The Wi-Fi button works, but when I click I,t no networks show.

I uninstalled and reinstalled the driver, set it to automatic, and ensured it was set to "no preference" for networks.

The HP uefi said "No network card found or network card not working." Built-in troubleshooter didn't help, Said "restart the modem," but this isn't a modem problem, it happens to matter where I go. My work laptop gets wifi just fine in the same building.

I thought it may be internal damage, a screw was wobbling around inside before I found it and screwed it back in place. But when I run ping 127.0.0.1 in the command prompt, I get 0% loss with 4 packets sent and received.

I have tried a great many things. Please advise.

[VikramTheGreat]

Hi @Joker38,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

It sounds like your laptop’s Wi-Fi adapter is not being detected at the hardware level, which explains why no networks appear and UEFI diagnostics report “No network card found.” Here’s what this means and what you can do:

Why Ping Works

ping 127.0.0.1 only tests your loopback interface (internal networking), not the physical Wi-Fi card. So the card can still be missing or dead even if ping succeeds.

Likely Causes

• Loose or damaged Wi-Fi card (especially since you found a loose screw inside).
• Disconnected antenna cables near the hinge.
• Failed Wi-Fi module (common after physical stress or heat).
• BIOS/UEFI no longer detects the card → points to hardware failure, not just drivers.

Steps to Confirm & Fix

1. Check Device Manager
   • Does the Wi-Fi adapter appear under Network adapters? 
     • If missing, Windows can’t see the card → hardware issue.
        
2. Run HP Hardware Diagnostics (UEFI)
   • You already did this, and it said “No network card found,” which strongly suggests hardware failure.
      
3. Reseat the Wi-Fi Card
   • Power off, remove the bottom cover, locate the Wi-Fi module (usually near the battery), and: 
     • Disconnect and reconnect the card.
     • Ensure antenna cables are firmly attached.
   • If the card looks damaged or burnt, it needs replacement.
      
4. Replace the Wi-Fi Card
   • Most HP Pavilion laptops use Intel AX200/AX201 or Realtek adapters (M.2 slot).
   • Replacement cost: $15–$30.
   • If you want, I can help you find the exact part number for your HP 15-dy2035tg.
      
5. Alternative
   • Use a USB Wi-Fi adapter as a quick workaround if you need connectivity immediately.

I hope this helps.

Take care and have an amazing day!
 

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Regards,

VikramTheGreat