You've successfully connected to Wifi and used it normally. However, recently, your Samsung Galaxy J7 Prime is experiencing frequent network disconnections. Why is this happening?
Here, I'll outline several reasons causing the unstable Wifi connection on Samsung Galaxy J7 Prime and guide you through some basic troubleshooting steps:
First, ensure that your Wifi is always in a connected state
Step 1: Firstly, access the 'Wifi' settings.

Step 2: Select 'More'.

Step 3: Next, ensure that Wifi remains enabled during sleep mode.

Step 4: You should configure it to always connect.

Consider resetting your connection settings
Step 1: Go to backup and reset in settings, then choose 'Restore network settings'.

Restore network settings
Step 2: Here, select 'Delete settings'.

After all the steps, if your Wifi is still unstable, you should check your network connection. Wishing you success.
