Why won't my iPhone 5s connect to certain Wi-Fi?

My iPhone 5s has always connected to Wi-Fi networks. McDonalds, Sheetz, my home Wi-Fi, school Wi-Fi… But for some reason, it will not connect to the Wi-Fi at my parent's house. This Wi-Fi service is the only one that has a password. Does that have anything to do with it? I will type in the correct password, but it tells me that I'm unable to join the network. Why is this? And how do I fix it?

1) Settings > General > Reset > Reset Network Settings
2) Restart phone
3) Connect your Wi-Fi> type in your password again.

Newer Apples products don't accept WEP authentication… Only WPA/2

  • Why won't my xbox 360 connect to the internet but will connect to my iphone hotspot? Ill play cod bo2 almost daily and my xbox will connect to my mobile hotspot on my iphone 4s fine, but out of no where it will lag out and disconnect me from xbox live, its not a hardware issue everything connects normally, full bars and everything the phone still lets me get on the internet, but my xbox will not, why D:?
  • Why won't my iphone 4 connect to a certain Wi-Fi network? I have tried countless numbers of times to connect to a certain Wi-Fi network but continue to receive the same message, "Unable to join… ". I have reset the network settings in my phone but it still doesn't work. Any suggestions?
  • Why won't my verizon iPhone 5 send messages to certain people? I have a friend who has verizon and it sends messages to him very fast and I have friends who have different carriers and it won't send to them. The send bar keeps on going and stops at the last second. I have turned it off and on again and I have reset my network settings. Nothing has worked at all.
  • Why won't My sprint iPhone 4 won't connect to 3G? Before you say call them I already have ok. Today I had an upgrade but my aunt used it for her phone since I'm on her plan. It went good but then won't connect to 3G after that we called and they said something went wrong but nothing did so I'm wondering is there anything i could possibly do to fix it or should I call the place that did it? Or should I just call sprint or apple? Please help I have to use my phone a lot in places that don't have Wi-Fi.