In my house I’ve a number of Wi-Fi base stations. This is because it seems our walls are made out of lead and signals can’t penetrate them, so a single base station won’t cut it.
The end result is that when I move from the office to the living room, my iPhone should switch to the Wi-Fi in the living room, and abandon the one in the office because it’s now out of range.
What actually happens is that I have a useless one-bar signal for the Wi-Fi in the office.
One solution is to open the System app and delve into the Wi-Fi settings to choose the living room Wi-Fi, but a FAR quicker solution is to open Control Center (swipe up from the bottom of the screen), and then turn Wi-Fi off and then back on again.
Tap-tap. It takes seconds. Once the Wi-Fi is reactivated it’ll automatically associate with the strongest Wi-Fi signal — which for me is the one near me in the living room.
Here’s hoping that Apple figure out a better solution to this issue!
EDIT: As Giu points out in the comments below, you can ensure perfect handoff between Wi-Fi base stations within your house or workplace by ensuring they have the same SSID (i.e. name) AND the same password. I just tried this and it worked for me, so many thanks to Giu. However, knowing how stubborn Wi-Fi configuration can be at times, YMMV…