Single Player Project v3 (World of Warcraft)

In General, I want with brother on LAN play (wlan). I put it on your computer Single Player Project v3, set up like right. As a result, the first computer connects fine. On the second computer, in file realmlist.wtf pointed out the ip of the first computer. In the account that you created in single Player included, but when I try login to game server nothing happens. A couple of seconds there's a sign that an Attempt to login to game server and then just closes without any errors. Tried different account types, but it does not help.

Somebody can tell what's the problem?