troubleshooting motherboard lan port

[RSKeisuke]

I have a problem getting online on ethernet connection.

Symptom:
rj45 connected to LAN socket, steady green, flashing yellow. Win7 says network connected. Open chrome. No webpage can be reached.

What i have done:
Ping www.microsoft.com, unreachable. Strangely, ping www.singtel.com.sg is fine.
Tried loading www.singtel.com.sg, no joy.
Connect a different laptop to same rj45, everything ok.
Reset desktop chrome setting to default, still no go.
Tried turning off win7 firewall, still no go.

What else can i do to fully isolate that my desktop onboard LAN is confirmed dead?

 

[trenzterra]

What are your proxy settings in Chrome?

Also, can you access Microsoft via its IP 134.170.188.221? It could be that your DNS isn't working properly.

 

[devilwahaha]

Long shot here, but have you tried with another browser like IE or FF?

 

[RSKeisuke]

No proxy server used.

I have also tried with IE. No joy too.

 

[haylui]

try go local router or something first?

 

[widman01]

if can ping router, the lan is ok. I think it is network setting in OS or browser problem.

try to http your gateway,
eg
http://192.168.1.1 or http://192.168.1.254 for singtel user

step
1). ipconfig . default gateway?
2) ping default gateway
3) type in browser http://"default gateway ip"

 

[bikoyski]

this happened to me and it drove me nuts.
it turned out, it's winpcap that screwed up my network settings. I had to install it to be able to use my TPLink power plug GUI.
In the end, I had to do a system restore. I suggest you try that if all else fails.