Desktop computer will not connect through ethernet

[bartnawer]

This issue just started today after a couple years of working fine.

I have a modem and a router. I connect the ethernet from the modem to the router, which then provides wireless. I then also have an ethernet cable from the router to the computer. This always provided a wired connection and has always worked.

For some reason today, the wireless connection works for all laptop computers but the wired connect from the router to my desktop does not work. It just shows something is wrong with the internet connection and has a yellow caution sign.

I restarted the modem and router multiple times. I also tried to connect the ethernet directly from the modem to my computer. That does not work either. Again, the internet works fine wirelessly, just not to my wired connection.

Here is a couple screenshots from the desktop computer. I disabled firewall.

UPDATE: Wired connection is working in safe mode. Strange. Will update when i run malwarebytes in case

 

[DMHolt57]

The wireless configuration does not show...

 

[bartnawer]

The wireless configuration does not show...

What does that mean? Do you want to see an ipconfig screenshot from the wifi connected laptop?

 

[DMHolt57]

Is the default gateway the same (10.0.0.1) for wired and wireless?

 

[bartnawer]

Is the default gateway the same (10.0.0.1) for wired and wireless?

Yes it is the same. Attached is wireless(from laptop) ip config

 

[DMHolt57]

The subnet masks don't match...

 

[bartnawer]

The subnet masks don't match...

What would cause this issue and how can I resolve it? Thanks for all your replies

 

[DMHolt57]

Go into the network settings where you see the Ethernet adapter, right clik and select properties, make sure both are set to automatically obtain, clik the advanced button and enter the default gateway address, clik ok, reboot the machine...

 

[chev65]

From where I'm looking the subnet masks are the same on both machines 255.255.255.0
The IP's are also in the same range.

If the wired connection on the one machine won't work you might try resetting the TCP/IP stack or flushing the DNS and reset winsock. The file below will do that for you, save file unzip and run the file until your machine reboots.

 

[DMHolt57]

Musta been my eyes playing tricks, would have sworn one was .0.0

 

[chev65]

Musta been my eyes playing tricks, would have sworn one was .0.0

Well one of the ipconfig's had little tiny numbers and the other had normal size ones lol. :sarc:

 

[bartnawer]

From where I'm looking the subnet masks are the same on both machines 255.255.255.0
The IP's are also in the same range.

If the wired connection on the one machine won't work you might try resetting the TCP/IP stack or flushing the DNS and reset winsock. The file below will do that for you, save file unzip and run the file until your machine reboots.

I ran the program on the desktop computer with the ethernet connected straight from the modem to the back of the computer and the issue still persists.

 

[bartnawer]

UPDATE: Wired connection is working in safe mode. Strange. Will update when i run malwarebytes in case

 

[bartnawer]

So it worked in safe mode, found 3 viruses, removed them, and in regular windows 7, still cannot connect to internet. Worked in safe mode...

 

[chev65]

So it worked in safe mode, found 3 viruses, removed them, and in regular windows 7, still cannot connect to internet. Worked in safe mode...

Well between the three viruses and only being able to connect in safe mode I'd say there is probably another program that is preventing the connection or the machine is infected with more viruses.

You can try removing the installed programs one at a time or use a system restore point or a system image to restore the system to a previous point in time.

Running the sfc/scannow command might fix any files that may have been corrupted.