Iphone 5s won't let me log into my home Wi-Fi after the ios 8 update?

Sometimes it says the password is wrong, which I know my Wi-Fi password and sometimes it says "can't join network". I have tried restoring my network settings and everything. I don't have an apple store nearby so I have no idea how to fix this.

First, make sure that the Wi-Fi of your home work well. Then restart your iPhone.

It does, I use Wi-Fi on my laptop all the time. (right now) and it works fine on my ipad which has ios 7 still

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