Please don't dismiss this post; I've tried all of the above fixes and nothing works!
I, too, am having problems connecting to the network. I've followed the instructions to the letter, and it still fails.
I installed the .cab with the shortcut. When I start it up, I don't have WiFi or data turned on. The program turns on the data, but it doesn't seem to turn on WiFi. I've tried using the default name and password, as well as using my own name and password to setup a network. The device connects and shows "ready to accept incoming connections" but I can't see the network on my Mac. It always recognizes WMWifiRouter instantly. I even tried waiting longer than the suggested 2 minutes, but still nothing.
I've tried creating an ad-hoc network manually from the Macbook using the same network name and password on the device. It shows that it's connected, but I can't browse the internet because there's no connection.
Please help!
EDIT: Using the ROM in my sig below