I created a sharing wifi network using Ralink software. My iphone got the wifi but it only lasts around 5-10 seconds then the wifi got unselected. Strangely enough it would still notify me when I got a text message or something. But when I type a reply the wifi got unselected in 5 seconds and I have to go to Setting to select the wifi again. Not sure what the problem is. Network or my iphone setting? I'm using Macbook Air Edit: Never mind I got it figured out.