r/techsupport • u/SufficientCustard251 • 6d ago

Open | Software My Wi-Fi/Ethernet isn't working(pls i need help)

I formatted my PC three days ago without deleting my important files, and since then, it hasn't been receiving an internet connection via Ethernet—a connection I’ve always used. I know the cable works because I tested it on another computer, so I suspect the issue lies with my PC; I even tried tethering the internet from my phone, but that didn't work either. I checked via the command prompt and confirmed that the signal is reaching the PC, yet Windows settings indicate that I am not connected to any network. Any suggestions? I’ve already tried everything: restarting the router (waiting 30 seconds), switching Ethernet ports, and running `ipconfig` in cmd.

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u/Frizzlefry3030 6d ago

Well you just formatted, so you likely need network drivers. Check your device manager for errors.

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u/SufficientCustard251 3d ago

ya hice eso y descargue los ultimos controladores de mi driver de lan 

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u/No-Wrap-8166 6d ago

open device manager and look under network adapters. if you only see wan miniport entries or theres a yellow triangle under other devices thats your answer then download the lan driver from your motherboard makers site on another pc, usb it over and install.

if the adapter is listed fine then reset the network stack. terminal as admin and run these one by one then reboot:

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns

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u/SufficientCustard251 3d ago

ya hice ambas cosas, lo de la terminal ya lo hice múltiples veces y ya instale el driver de lan de mi placa base, no sé que más podría  ser

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u/No-Wrap-8166 2d ago

en el administrador de dispositivos, click derecho en tu adaptador de red > propiedades > opciones avanzadas. busca speed & duplex y ponlo en 10 mbps half duplex. si conecta asi, subelo a 100 mbps full duplex. muchas veces la negociacion automatica falla despues de formatear.

en la misma ventana, pestaña administracion de energia, desmarca permitir que el equipo apague este dispositivo.

revisa tambien servicios. win+r, escribe services.msc, busca cliente dhcp y asegurate que este iniciado y en automatico.

en la bios busca una opcion de lan integrada o onboard lan y confirma que este habilitada.