How to Fix Wi-Fi Problems on Samsung Galaxy S7: In order for this not longer to annoy you or even the security you use, we would like to offer a few solutions.
Basic Troubleshooting Steps
Reboot your Device: Sometimes, a simple reboot will fix the connection. Turn off your Galaxy S7 all the way, wait for 30 seconds and turn it back on the same way
Forget and Rejoin the Network: Navigate to Settings >
Wi-Fi, tap on your network and press Forget. Then you will have reconnect by going to the network and typing in your password.
Restart Your Router: Disconnect your router for 30 seconds and then reconnect it.WiFiTroubleshooting (ad) This could clear out any network problems that are temporary.
Advanced Solutions
Look for Software Updates: Make sure your device is up to date Check for Updates – Settings / About device / Software update
Reset Network Settings – If issues still continue to occur so it may be best possible that reset your network settings. Go to Settings>> General Management>> Reset and then hit Reset Network Settings. Keep in mind this will delete any Wi-Fi networks or Bluetooth connections you have saved, so you would need to re-connect afterwards.
Adjust WiFi Settings; Go to settings > Wifi > More then set Keep Wi-Fi on during sleep= Always This is so that it does not disconnect when I’m idle.
Additional Tips
Scan Other Channels: If your router uses 2.4GHz, switch it to another channel for a better reception. Slightly longer ranges but generally more crowded 2.4GHz band, and faster speeds over shorter distances on the 5GHz band.
Turn off Bluetooth: Users also report better Wi-Fi connectivity when bluetooth is turned off since the two functions can interfere with each other.
Safe Mode Testing: If you boot to Safe Mode, your device can help you identify whether it is the issue of a third-party app or not. If you want to boot your Xperia Z5 into the Safe Mode, tap and hold the Power key for a few seconds until you see the option ‘Power off’.
If you follow each of the above steps in a methodical way, you will be able to solve almost all Wi-Fi issue for your Samsung Galaxy S7.