Samsung Family Hub RF28R7551 refrigerator will not connect to Wi-Fi or the manufacturer's app

The checks in more detail

All of that depends on a network connection and on a Samsung account. Start with the network. The Family Hub joins the 2.4 gigahertz band, so if your router combines the 2.4 and 5 gigahertz bands under one name, temporarily separate them or use the guest network on 2.4 gigahertz during setup. Make sure the refrigerator is within range of the router; a kitchen wall can weaken the signal, and a mesh node nearer the kitchen often cures dropouts.

On the screen open Settings and the network option, choose your network and type the password carefully. If the screen offers a connection test, run it and read the message, which usually tells you whether the problem is the password, the signal or the internet. Then the account and the app. Sign in to your Samsung account on the screen and in the SmartThings app, with the same account on both.

In SmartThings choose to add a device and follow the steps, which may ask you to put the refrigerator in a pairing mode on the screen. If the connection has worked before and stopped, check that the router's name or password has not changed, restart the router, and restart the screen by following the manual's reset steps or by briefly cutting power to the refrigerator, which reboots the screen while the cooling restarts. Update the screen's software and the app. If the screen still will not connect, contact Samsung with RF28R7551SR and the serial number.