Iphone 5 won't stay connected to WIFI

[ThisMomRock]

My daughters phone keeps dropping, or won't pick up WIFI.  Needless to say, I am having to pay more for data.  Any suggestions?

[vzw_customer_support]

We want you to stay connected to your WiFi all the time ThisMomRock. WiFi is a great way to keep your data usage under control, and we want you to stay in control. When did this start? Does this happen with any WiFi she connects to? Is your software up to date http://vz.to/1BiGZYk .
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[Ann154]

Has you tried turning off Wifi assist in the phones settings?

[bd94s10]

I would suggest resetting all network settings. Keep in mind this wipes out all saved Wi-Fi networks and passwords. This is a step that Apple would first consider trying before swapping a device in warranty.

Settings > General > Reset > Reset Network Settings. That is what I would try first. After it does that, try connecting to the home wifi or wifi network in question and go from there. Only takes a minute or so to try.