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

So today I was using my iPhone and all of the sudden I got disconnected from my network. Shortly after that my C Spire Streaming Pass Expired as well. ( I don't know if this has anything to do with the problem since I should be able to access the internet on my own home network.) Now, When I try to connect to my Home Network and enter the Pass, It keeps saying, "Unable to Join Network". Recently, I Reset my Network Settings and still nothing. I Reset y router. Nothing. As You can probably tell, I'm really upset about this and want some help.

Call your service provider (for Wi-Fi, not phone), your password may have changed. I'm sorry if this does not help but this is all i can think of that couldve happened

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