Why won't my iphone personal hotspot connect to my laptop?

I don't have Wi-Fi in my house (don't even ask) and i connect to the internet with my and my parents' phones. I've recently upgraded from the iphone 4s to the 5, and while the personal hotspot from the old one worked fine on my laptop before the new one just doesn't connect to my phone.
My dad's also got the iphone 5 and it connects fine to his, but when mine shows up on the network list and i click on it says 'checking network requirements' and then 'can't connect with this network'. On my dad's as soon as i click on it it prompts to enter the network key with no problems. The diagnostics page is no help, can somebody help!
and by the way i'm on a samsung windows 8 laptop.

It could be you have to pay extra to connect them via hotspot? My phone is on contract and i pay for my Wi-Fi, but it doesn't allow me to use it as a hotspot, it says i have to pay more.

My iPhone 5 will sometime connect but refuses to. I have my personal hotspot on, my cellular data on, my Wi-Fi on. Bluetooth off this usually works my service is with att

I have an iPhone 6 and my laptop does not recognize my hotspot

Mine was doing the same thing and finally figured out that the password my computer had saved at some point was different than my current hotspot. So I right clicked the hotspot in my network connections, clicked forget, then clicked connect again which forced it to asked for my new password. That worked for me.

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