my iPhone will to work on wifi at home but works on wifi outside the home
My phone does not work on wifi at home but does outside the home.
iPhone 6 Plus, iOS 12
if it was me then I would
- try to disconnect the wifi router for 30sec and see if it made it behave
- check if there were newer firmware updates for the wifi router from the manufacturers support website
- check the wifi routers configuration to verify that both 2.4Ghz and 5Ghz wifi were bridged and set to be connected to the internet