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I'm going to PM you a screenshot of my Network Connections screen so you can compare notes. I wrote some notes on the screenshot for you to consider. Like I said there, I think you still have Internet connection sharing enabled or there is some remnant of it lurking around.
Try entering "ipconfig/all" into the command prompt and see what IP address your computer has. Is it 192.168.0.1? This is the standard address of a computer with internet connection sharing enabled. If you do have this address... I wonder how you are still connecting to the Internet via your router? (unless it just happened to be on the same network AND it didn't have the IP address of 192.168.0.1.
If you could copy the info from the ipconfig/all and post it here (minus the MAC addresses and any public IPs), that would be great.
Take a look at this
article about Windows Internet connection sharing . Looks familiar, doesn't it?
I'm wondering what would happen if you were to, say, right click the Internet gateway and delete it? If you don't know why it's there, I don't see why it should be or how it could be critical to anything you are doing. If anything, it will only cause problems if it's not meant to be there.
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The funny thing is that when I turned on my computer today, the Internet Gateway was gone. It must have disappeared when I reset the tcp/ip-stack I guess. And it definitely connected to internet through that gateway before, because the network stopped working when I disabled it.
The problems remains though.
ipconfig /all shows this:
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IP-konfiguration för Windows
Värddatornamn . . . . . . . . . . : shining
Primärt DNS-suffix . . . . . . . :
Nodtyp . . . . . . . . . . . . . :
Unknown
IP-routning aktiverat . . . . . . : No
WINS-proxy aktiverat . . . . . . : No
Ethernet-kort nForce Ethernet:
Anslutningsspecifika DNS-suffix . :
Beskrivning . . . . . . . . . . . : NVIDIA nForce Networking Controller
Fysisk adress . . . . . . . . . . : *************
DHCP aktiverat . . . . . . . . . : Yes
Autokonfiguration aktiverat . . . : Yes
IP-adress . . . . . . . . . . . . : 192.168.1.3
Nätmask . . . . . . . . . . . . . : 255.255.255.0
Standard-gateway . . . . . . . . : 192.168.1.1
DHCP-server . . . . . . . . . . . : 192.168.1.1
DNS-servrar . . . . . . . . . . . : 192.168.1.1
Lånet erhölls . . . . . . . . . . : den 12 juni 2006 17:19:27
Lånet upphör . . . . . . . . . . : den 19 januari 2038 05:14:07
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I checked how this info looked on one of my other computers on which file sharing works fine, and noticed that the Nodetype was different. On the one that works it says:
"Nodtyp: Broadcast" and on the one that doesn't work it says "Nodtyp: Unknown".
Perhaps this could lead us to the problem.