No internet connectivity? What could be the problem?

[Mr. Pedantic]

I woke up this morning, turned my computer on, and discovered that it could no longer connect to the internet. WiFi works perfectly on my Samsung Galaxy S and laptop, and plugging my desktop's ethernet cable into my laptop and disabling WiFi allows me to access the internet fine as well. So I'm assuming that there's something going on with my motherboard. I've tried switching between the two ports on the rear IO panel of my motherboard, and there was no discernible difference - neither allowed me to get internet.

I'm kind of guessing at this moment that the problem is with the mobo, which is why I'm posting this in the motherboards section. But what specifically could be causing this? Software, or hardware? I've only ever updated the driver through Windows Update and the last time was maybe a month ago. Nothing else that I can think of has changed since the last time it worked and this morning. My motherboard is the MSI Eclipse SLI.

TIA.

 

[SolMiester]

Little confused, your laptop uses wifi to connect, but thats not working right now? Wired connect to the laptop does though?...
So its not TCP stack!, you could try uninstalling the wifi card from device manager, reboot and let windows re-install and try again, then I would try a static addrsss on the wifi card to see if that helps...

 

[Raduque]

What do you get if you run ipconfig /all from a command prompt, while the ethernet cable is connected?

Also, have you tried simply rebooting everything in sight? Router, cable modem, any switches/hubs and the affected PC?

SolMiester, it's confusing the way he words it, but I believe the Wifi is related only to his laptop, and he's having problems with the ethernet ports on his desktop.

 

[SolMiester]

Oh right, Im with it now....the on-board NICs are the issue! I would try winsock fix to see if it hardware or software stack of TCP
http://windows7themes.net/winsock-fix-for-windows-7.html

 

[Mr. Pedantic]

What do you get if you run ipconfig /all from a command prompt, while the ethernet cable is connected?

Host name.......................: GPC
Primary Dns Suffix..............:
Node type.......................: Hybrid
IP Routing Enabled..............: No
WINS Proxy Enabled..............: No

Tunnel adapter local Area Connection* 12:

Media State.....................: Media Disconnected
Connection-specific DNA Suffix..:
Description.....................: Teredo Tunneling Pseudo-Interface
Physical Address................: 00-00-00-00-00-00-00-E0
DHCP Enabled....................: No
Autoconfiguration Enabled.......: Yes

Tunnel Adapter isatap.<D1Ce670E-AD5A-4669-8649-CDF14ADE9057>"

Media State.....................: Media Disconnected
Connection-specific DNA Suffix..:
Description.....................: Microsoft ISATAP Adapter #3
Physical Address................: 00-00-00-00-00-00-00-E0
DHCP Enabled....................: No
Autoconfiguration Enabled.......: Yes

Also, have you tried simply rebooting everything in sight? Router, cable modem, any switches/hubs and the affected PC?

Doesn't work.

SolMiester, it's confusing the way he words it, but I believe the Wifi is related only to his laptop, and he's having problems with the ethernet ports on his desktop.

Yeah, this. Sorry.

Oh right, Im with it now....the on-board NICs are the issue! I would try winsock fix to see if it hardware or software stack of TCP

I think that fixed it. Thank you

Now...what did I actually do?

 

[SolMiester]

Host name.......................: GPC
Primary Dns Suffix..............:
Node type.......................: Hybrid
IP Routing Enabled..............: No
WINS Proxy Enabled..............: No

Tunnel adapter local Area Connection* 12:

Media State.....................: Media Disconnected
Connection-specific DNA Suffix..:
Description.....................: Teredo Tunneling Pseudo-Interface
Physical Address................: 00-00-00-00-00-00-00-E0
DHCP Enabled....................: No
Autoconfiguration Enabled.......: Yes

Tunnel Adapter isatap.<D1Ce670E-AD5A-4669-8649-CDF14ADE9057>"

Media State.....................: Media Disconnected
Connection-specific DNA Suffix..:
Description.....................: Microsoft ISATAP Adapter #3
Physical Address................: 00-00-00-00-00-00-00-E0
DHCP Enabled....................: No
Autoconfiguration Enabled.......: Yes

Doesn't work.


Yeah, this. Sorry.


I think that fixed it. Thank you

Now...what did I actually do?

Not much, just recompiled your TCP stack