Ethernet really slow on Desktop

[diegoneedhelp]

Hello. Today i have come to rely on tomshardware for help (as i usually do). I just got a desktop, that my uncle gave to me and i have had some problems. My desktop doesn't have wifi, so i have to connect it by cable (ethernet). For some reason the ethernet is REALLY slow in the computer. Some may say its not the PC problem, but it is. My Wifi works really well with a 1.25 MBPS of download speed (most times, at least when its day time). I tried connecting my laptop with the ethernet cable and it worked fine! The same speed as my wifi. My desktop in the other hand, gets 4 kb/s when downloading something. It took me 4 hour to download my anti virus protection (McAfee). I do not know if its a virus, or if my drivers are outdated. I currently have a BIOSTAR G41D3+. Thanks!

 

[Ralston18]

Are you using the built-in network adapter or a PCI or USB ethernet adapter?

Either way:

1) Update the network card adapter(s).

2) Reconfigure the desktop network adapter(s) to match your network. (Use the laptop as a reference.)

Hopefully one or the other, if you have two adapters, will work.

 

[diegoneedhelp]

Are you using the built-in network adapter or a PCI or USB ethernet adapter?

Either way:

1) Update the network card adapter(s).

2) Reconfigure the desktop network adapter(s) to match your network. (Use the laptop as a reference.)

Hopefully one or the other, if you have two adapters, will work.

It uses a built in network adapter. I already tried to update the card adapter, nothing worked. I will try configuring the network adapter tho.

EDIT: They have the same configurations.... This is really stressing me out...

 

[Ralston18]

Do you know the history of the desktop? Who had it, what environment was it in....? Any damage around the ethernet port?

Did you install any other software.

Sometimes older computers that have not been used for awhile will connect somewhere and start trying to do updates..

Go into Task Manager to see what all is running. "Use perfmon /res" via the Run bar as well.

Are you familar with the "ipconfig" command? At the command prompt with admin rights run "ipconfig /all" to see what the desktop "knows" about its network configuration.

Wired will be faster than wireless once the problem is identified and resolved.

 

[marko55]

Have you checked to see if the adapter is negotiating with the switch at 100/full or 1000/full like it should be? Could be a simple negotiation issue and your adapter is connecting at 10/half and the switch is taking a TON of errors and your traffic is suffering.

If worse comes to worse and you have an open slot (even a plain old PCI slot) I'd grab a gigabit adapter online & try it out. They're super cheap.

 

[psoohoo]

bad cable? change the port you connect to on the switch or router? you can also try to reset the switch or router also.

I had to do this once as my new pc kept failing to negotiate the correct connection speed. I first thought it was the cable and the adapter (on-board), but eventually fixed it when i used a different port on my switch. The port worked again after i powered the switch down and restarted it.