OK, here's how I did it.
- Download
TMac and
Virtual Router Manager and install them both.
- Run CMD as Admin and enter this code:
Code:
netsh wlan set hostednetwork mode=allow
- On TMac, change the MAC address of your Wi-Fi to the desired MAC from the spreadsheet. If you're only connected to the Internet through Wi-Fi, it should be the only connection that reads "Up" and "Operational".
- On VRM, create a new hotspot with SSID "attwifi". Use whatever password you want. On "Shared Connection" choose your Wireless connection. Name may vary, but the only other option should be "None", so don't pick that. Click "Start Virtual Router"
- Go to System Settings on your 3DS, and search for a new connection. It should find one named "attwifi". Try connecting to that one, and enter the password you chose at VRM. Try connecting to it until it fully succeeds, as it may not work on first try.
- Go back to the 3DS main menu and wait a few seconds until it detects Nintendo Zone. Wait a couple of minutes and you should get a StreetPass.
- To try a different MAC, you have to stop VRM, change the MAC on TMac, and go to 3DS System Setting, delete the connection and start all over. I couldn't get it to work by simply changing the MAC.