why wont my lg g2 connect to wifi?

[AC Question]

I have had this phone for about a year and no real problems. Today I noticed that it wasn't connected to my wifi. I went to turn it on and it still wasn't connecting. so I went into settings and tried to see if maybe it forgot the network and it wasn't showing any possible networks at all. not mine or the neighbors. it wouldn't let me add networks or scan for networks. it was working last night. my ipad connects and my computer. I even tried unplugging the internet box for a few minutes and then plugging it back in and still nothing. I don't know what else to try.