Question Ethernet not connecting to my PC ?

Feb 19, 2025
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i dont know if i'm in the right place or not but can anyone help me.
I just installed a new Windows 11 and I don't seem to be able to connect an ethernet cable to my PC?
 
Use a second computer and go to the manufactures webpage for your motherboard. Find your motherboard, quickest way it to google the make and model, once on the motherboard webpage look for support. under support download the chipset, network, and audio drivers for windows 11 and install them.
 
i dont know if i'm in the right place or not but can anyone help me i just installed a new windows 11 and i cant seem to be able to connect an ethernet cable to my pc
First thought, since this is a new OS install, did you install the chipset and peripheral drivers from the motherboard ?
Have you checked the Windows device manager for any devices with question marks ?
 
Use a second computer and go to the manufactures webpage for your motherboard. Find your motherboard, quickest way it to google the make and model, once on the motherboard webpage look for support. under support download the chipset, network, and audio drivers for windows 11 and install them.
i tried doing that but when i was installing lan drivers it says "the realtek network controller was not found if deep sleep mode is enabled please plug the cable" how do i fix that?
 
First thought, since this is a new OS install, did you install the chipset and peripheral drivers from the motherboard ?
Have you checked the Windows device manager for any devices with question marks ?
i just installed the chipset drivers but where are the peripheral drivers in my motherboard website
 
i installed amd chipset drivers but it still says "the realtek network controller was not found if deep sleep mode is enabled please plug the cable"
Go back to the Windows device manager. Is there any devices with question marks? Does the realtek network adapter show up under "network adapters" ?

What is the other end of the ethernet cable you are connecting your PC to plugged into ?
 
there are lights for other adapters just not for the ethernet one
If there are no lights on the ethernet adapter, then either the other end of the cable is not plugged into a valid ethernet device OR the hardware on the motherboard is bad. There should be LEDs on the board without any drivers. Those LEDs are hardware ONLY. No drivers required for the LEDs.
 
Go back to the Windows device manager. Is there any devices with question marks? Does the realtek network adapter show up under "network adapters" ?

What is the other end of the ethernet cable you are connecting your PC to plugged into ?
my ethernet is currently plugged into an extender

and under network adapters i see a realtek RTL8188EU wireless LAN 802.11 usb 2.0 network adapter
 
the extender model is RE450 and the LEDs say 2.4ghz, 5ghz and power
The RE450 should allow an ethernet connection. BUT if the LEDs on the motherboard are not lit, then there is something wrong at the hardware level.
If it were me, I would carry the PC and monitor to your primary router and connect it with a brand new, factory made ethernet cable. If you don't get LEDs around the ethernet cable, then your motherboard has a hardware problem.
 
The RE450 should allow an ethernet connection. BUT if the LEDs on the motherboard are not lit, then there is something wrong at the hardware level.
If it were me, I would carry the PC and monitor to your primary router and connect it with a brand new, factory made ethernet cable. If you don't get LEDs around the ethernet cable, then your motherboard has a hardware problem.
i'll try that
 
my ethernet is currently plugged into an extender

and under network adapters i see a realtek RTL8188EU wireless LAN 802.11 usb 2.0 network adapter
I don't understand. You are trying to connect with an ethernet cable but have the driver for a wireless adapter. Maybe that's your problem. You installed the driver for a realtek wireless usb adapter but you don't have that so Windows says it can't find it.
 
There might be an option in the BIOS to enable/disable the Ethernet chipset. If it's disabled, Windows won't load any drivers and you probably won't see any green or yellow LEDs on the RJ45 Ethernet mobo port when it's connected to a router or network switch.