Wireless works but wired computer can't connect

can we see an ipconfig /all please
is DHCP enabled ?

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Safemode with networking
with a cable connected from PC to router
check the cable - see if there is a light on the router associated with the cable port used , also check if you have a green/yellow light on the PC LAN port (some PCs do not have any lights on the LAN port - so ignore)
- try safemode with networking (sometimes wireless does not work with safemode )

For Windows 8 - see below

For other windows version, XP,Vista, W7 as the PC starts keep tapping F8 - a menu appears - choose
safemode with networking - see if that works

For windows 8

http://www.7tutorials.com/5-ways-boo...s-8-windows-81
http://windows.microsoft.com/en-gb/w...ding-safe-mode
http://pcsupport.about.com/od/window...-safe-mode.htm

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ipconfig /all

We would like to see the results from an ipconfig /all - post back the results in a reply here.

If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post the results in a reply here.
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply
Note: you will see entries named Tunnel adapter Teredo Tunneling Pseudo-Interface: we dont need to see that information - JUST the information above those entries

For Windows 8

To open a Cmd Prompt or an Administrator Cmd prompt from the Desktop.
http://www.bleepingcomputer.com/tuto...-in-windows-8/
Use Win + X and choose Command Prompt or Command Prompt (Admin) from the list.

For windows version, XP, Vista, W7

Hold the Windows key and press R

Now type CMD

Now press Enter to open a command prompt box (A new dialogue box - black with white font, will appear on screen ):

In the command prompt window that opens, type the following command:

Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

ipconfig /all > network.txt & network.txt

It will export the results into notepad and then automatically open the notepad and display on your screen.

Now all you need to do is copy and paste those results into a reply here
to do that:
From the notepad menu - choose Edit - Select all
all the text will now be highlighted
Next
From the notepad menu - choose Edit - Copy

Now go back to the forum - goto the reply and then right click in the reply box and paste the results.
The results from the notepad should now appear in the forum reply.
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