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I have a tower with Windows 7 64-bit on it. It connects to the internet through the use of a Netgear WNDA3100 N600 Wireless USB Adapter. I also have an Xbox 360 that I want to connect to the internet through the use of bridging the connection from the Wirelss Adapter to my Ethernet port.

Now, this works fine on both my laptops using internet wireless cards, so I have no idea why it's not working now, when I try to bridge the connection I get this error:

As you can see in the picture I do have two High-speed internet connections selected.

I tried disconnecting the wireless and then doing it but to no avail. I also tried disabling the wireless connection, but then it disappears from that screen and I have to run Windows Troubleshooting to get it back again.

How can I fix this??

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WiFi doesn't support bridging without WDS configured on both ends. Unfortunately, WiFi is just enough like Ethernet to confuse people. If it let you make the connection, it wouldn't work anyway. Packets received from the LAN don't have a source hardware address that's paired with the access point. So they can't be bridged to it.

Access points (and your router is acting as an access point) will only talk to their clients, not devices they bridge, unless they are specifically configured otherwise.

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I said in the post WiFi bridging works fine on both my laptops from the same router to the same Xbox. It just doesn't work on my desktop. –  Mark Kramer May 30 '12 at 2:12
    
Right, and I explained why it doesn't work on your desktop -- you can't bridge Ethernet to a WiFi client connection. Unless I misunderstood your question, your laptops don't have WiFi client connections, so that's why they work. –  David Schwartz May 30 '12 at 18:49
    
Define: Wifi client connection. I want to accept your answer but I don't understand it fully. –  Mark Kramer May 1 '13 at 8:23
    
A WiFi client connection is a normal connection to a typical 802.11 access point with no special configuration on the access point. When a computer typically connects to an access point (using 802.11 a, b, g, or n, it becomes a client of that access point. The WiFi specification specifically says that APs shall only send to clients packets destined (at layer 2) for those clients. This means clients cannot bridge. That's why you need WDS to bridge WiFi. –  David Schwartz May 1 '13 at 8:33
    
But then why can both laptops bridge the Wi-Fi in the same manner? Aren't they considered Wi-Fi clients as well? –  Mark Kramer May 1 '13 at 19:04

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