USB Ethernet adapter - can't connect with it

roytom2

My Windows 11 laptop doesn't have an RJ45 socket so I bought online a cheap USB RJ45 adapter. When plugged into a USB port it's led light illuminates and shows up in Device Manager as "Corechip SR9900 USB2.0 to Fast Ethernet Adapter" but if I plug in an RJ45 cable to it that's connected to my router nothing shows up in Network & internet > Ethernet shows Not Connected.
I wanted to directly access a spare router to be used as a wifi extender and this needs the settings changing using a wired connection.
I have tried locating newer drivers for it but Windows 11 says the current driver installed is the latest. The adapter is USB108YS
Any ideas? Have I bought a duff adapter?
Thanks for reading

DullGreyGuy

Have you tried another ethernet cable just in case its an old style cross cable or such

400ixl

Are there lights on the USB adapter where you plug in the ethernet cable? Do they light up and start flashing?

roytom2

I have tried other Ethernet cables without anything showing up
When the adapter is plugged into the computer a red light glows in it but nothing else happens when the Ethernet cable is plugged into it - the red light just continues to glow but doesn't flash.

gefnew

like this one found on the internet.

driver for win 10 64 bit USB to Ethernet Adapter Corechip - Microsoft Community

Jim431

Maybe try a Ethernet Crossover Cable ???

In a crossover cable, as opposed to a "straight through" cable, the transmit (TX) pin on one end of the cable has been connected to the receive (RX) pin. In other words, the signal traveling from one pin to another crosses over from the transmission and reception pins and vice versa.

Why? Because this allows two devices connected by Ethernet to talk directly to each other without needing a network switch, hub, or router between them. If you connect a straight-through cable to two host devices (such as two PCs) then both devices will try to transmit data packets on the same wire, and both will be listening on the same wire, so no actual data will make it through either way.

Source: https://www.howtogeek.com/874751/what-is-an-ethernet-crossover-cable-and-when-should-you-use-one/

prowla

Have you got anything else with an Ethernet port which you could plug in to test the cable & router connection?

Have you tried another port in the router (some have a specific role assigned to a port, eg. my Zen router has port 0 assigned to connect to the fibre connection's wall box).

Vitor

Try running the network trouble-shooter in Windows 11 -

 

bob2302

Jim431 said:

Maybe try a Ethernet Crossover Cable ???

That hasn't mattered for decades - they just work it out.

Dandytf

Is the usb 2 port powered rated, I've used similar Adaptor albeit via Kensington Dock to USB-C Laptop.
Has the usb port been used for any other Devices, is USB seen via Device Manager- Bottom 2 usb options.