My name is***** am sorry to hear that you are having this issue.
I will be glad to assist you with this.
What is the brand model of your phone please?
You can reply to me here by typing in the box below please.
This may be a fault with the iPhone, lets check it first. If that does not work we can check your network settings.Please try this first on your iPhone, follow these steps>
Tap Settings.Tap General.Scroll down t.o the bottom of the page and tap Reset>Tap Reset Network Settings.
You will get a prompt warning you that this option will delete all network settings and return them to factory default settings. Tap Reset to continue.Wait while your iPhone resets its network settings.
Once the reset process is done, your network settings will return to its factory default settings. Your iPhone will also automatically restart. Then try reconnecting your iPhone to the network again.
Tap Settings > Wi-Fi.
Available Wi-Fi networks appears under "Choose a Network..."
Locate and tap your home network,
Tap in your Password-
Did that work for you?
Please let me know if you need any more help with this.