Fix Galaxy S25 Wi-Fi not connecting

If your Galaxy S25 refuses to join Wi-Fi, the fix is usually a bad saved network profile, a router handshake issue, or a network stack glitch on the phone. Start with the quickest fixes first, then move to resets only if needed.

Method 1: Restart both ends of the connection

Turn Wi-Fi off on your Galaxy S25, wait 10 seconds, then turn it back on.
Restart the phone.
Power-cycle your router/modem (unplug for 30 seconds, then plug back in).
Reconnect to your network and test internet access.

This clears temporary radio and DHCP handshake issues that commonly block first connection attempts.

Method 2: Forget the Wi-Fi network and reconnect cleanly

Go to Settings > Connections > Wi-Fi.
Tap the gear icon beside your network, then tap Forget.
Select the same network again and enter the password carefully.
If available, keep IP settings on DHCP unless your network requires static IP.

Method 3: Check router-side limits and compatibility

Make sure the router is online and not overloaded with devices.
Temporarily disable MAC filtering or access control lists in router settings.
Split Smart Connect bands (2.4 GHz/5 GHz) and test each band separately.
If you recently changed router settings, revert security to WPA2/WPA3 mixed mode and retest.

Method 4: Reset network settings on Galaxy S25

Open Settings > General management > Reset.
Tap Reset network settings.
Confirm reset, then reconnect to Wi-Fi.

Note: this removes saved Wi-Fi, Bluetooth pairings, and mobile network preferences, but does not delete personal files.

Method 5: Rule out app conflicts and software issues

Install pending updates in Settings > Software update.
Boot into Safe Mode and test Wi-Fi there.
If Wi-Fi works in Safe Mode, uninstall recently added apps one by one.

When to escalate

If your Galaxy S25 still won’t connect after the steps above, test it on a different Wi-Fi network. If it fails on multiple known-good networks, contact Samsung support and have the phone checked for hardware-level radio faults.