Why won t my Nikon D5300 connect to my iPhone 5c through wifi?

I have a Nikon D5300. I took some pictures today and I want to transfer the pictures to my iPhone 5c. Well, I followed a tutorial that said to turn on my camera s wifi. I did, and I checked the SSID. After I did that, on my iPhone, I went to Settings-Wifi and then I pressed the SSID for my camera. It takes more than 10 minutes to connect to my camera. And after 10 minutes has passed, it disconnects which doesn t give me a chance to be able to use the Nikon app "WMU" which is published by Nikon on the AppStore. The tutorial said once I connected to my camera through wifi, I could transfer and download my pictures from my camera to my iPhone 5c using WMU, the app. What should I do? Is there any other way I could transfer my pictures to my camera? Or can someone tell me what I m doing wrong?

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