How to Fix "Connected Without Internet" on Samsung Phone (Wi-Fi Shows Connected But No Internet Access)

Understanding the "Connected Without Internet" Error on Samsung

When your Samsung phone displays the message "Connected, no internet" or "Connected without internet" beneath a Wi-Fi network name, it means Android's connectivity service successfully associated with the access point at the Wi-Fi (Layer 2) level — the handshake completed, an IP address was obtained — but a higher-level probe to verify real internet reachability failed.

Android uses a mechanism called Captive Portal Detection (CPD). After connecting to any Wi-Fi network, the operating system silently sends an HTTP GET request to a Google-hosted URL:

http://connectivitycheck.gstatic.com/generate_204

If the server responds with HTTP 204 No Content, Android marks the network as "internet available." If it receives anything else — a redirect (common on hotel portals), a timeout, or an error — it shows "Connected without internet." On Samsung One UI devices, this exact notification appears in the status bar dropdown and under Settings > Connections > Wi-Fi.

Step 1: Confirm the Scope of the Problem

Before changing anything, determine whether the issue is with your Samsung device only or all devices on the network.

Check on another device: Connect a laptop, tablet, or a second phone to the same Wi-Fi. If those devices also have no internet, the problem is with your router or ISP — not your Samsung phone.

Check mobile data: On your Samsung, temporarily disable Wi-Fi and use mobile data. If apps and browsers work fine, the phone's hardware and software are functioning correctly.

Observe the exact error string: On Samsung One UI (Android 11–14), you will see:

• In the Wi-Fi list: "Connected without internet"
• In the notification shade: "Wi-Fi has no internet access"
• On Samsung A12 (One UI Core 3.1): "Connected, no internet access" under the network SSID

Step 2: Toggle Airplane Mode (Fastest Fix)

1. Pull down the notification shade.
2. Tap Airplane Mode to enable it — wait 10 seconds.
3. Tap Airplane Mode again to disable it.
4. Your phone will reconnect to Wi-Fi automatically.

This forces the radio stack to reinitialize, clearing transient state issues in the Wi-Fi firmware.

Step 3: Forget and Reconnect to the Wi-Fi Network

1. Go to Settings > Connections > Wi-Fi.
2. Tap the gear icon next to your network name.
3. Tap Forget.
4. Tap the network name in the list and re-enter the password.

This clears any corrupted network profile (saved DHCP lease, wrong saved IP configuration) and forces a fresh DHCP handshake.

Step 4: Set Manual DNS Servers

A very common cause on Samsung A12 and similar budget Samsung phones is that the carrier or router's DNS servers are unreachable or returning bad responses, causing the captive portal probe to fail.

1. Go to Settings > Connections > Wi-Fi.
2. Tap the gear icon next to your connected network.
3. Tap IP Settings and change from DHCP to Static.
4. Keep the IP address and gateway as-is (note them down first).
5. Change DNS 1 to 8.8.8.8 and DNS 2 to 8.8.4.4.
6. Tap Save and reconnect.

Alternatively, use Cloudflare's DNS: 1.1.1.1 / 1.0.0.1.

Step 5: Reset All Network Settings

If the issue persists across multiple networks, a deeper reset is needed.

1. Go to Settings > General Management > Reset.
2. Tap Reset Network Settings.
3. Confirm — this will erase all saved Wi-Fi networks, Bluetooth pairings, and VPN configurations.
4. Reconnect to your Wi-Fi network.

Note for Samsung A12 users: On One UI Core, navigate to Settings > General Management > Reset > Reset Network Settings. The path is identical but menus may render slightly differently on the 6.5" display.

Step 6: Clear Wi-Fi Direct and Captive Portal Cache via ADB

For advanced users with USB Debugging enabled (or IT administrators managing Samsung fleets), you can use ADB to reset the connectivity check settings and clear network caches directly.

See the Diagnostic Commands section below for exact ADB commands.

Step 7: Check Router Configuration

If you control the router:

• Reboot the router (power cycle for 30 seconds).
• Log into the router admin panel (typically 192.168.1.1 or 192.168.0.1).
• Check if MAC address filtering is enabled — your Samsung's MAC may not be on the allowlist. Note: Samsung phones use randomized MAC addresses by default since Android 10. Disable MAC randomization: Settings > Connections > Wi-Fi > gear icon > MAC address type > Use phone MAC.
• Check that the router's DHCP pool is not exhausted (too many connected devices).
• Verify the router has a valid WAN IP from the ISP (check the router's status page).
• Update the router firmware if an update is available.

Step 8: Check for Samsung-Specific One UI Captive Portal Setting

Some Samsung devices on custom ROMs or after carrier updates have the captive portal detection URL overridden or disabled. You can check and reset it via ADB:

adb shell settings get global captive_portal_server
adb shell settings get global captive_portal_https_url

If these return unexpected values or null, reset them to Google defaults (commands in the code section below).

Step 9: Safe Mode Test

Boot into Safe Mode to check if a third-party app (VPN client, battery saver, firewall app) is intercepting the captive portal check:

1. Press and hold the Power button.
2. Long-press the Power Off option until Safe Mode appears.
3. Tap Safe Mode to reboot.
4. Connect to Wi-Fi in Safe Mode — if it shows "Connected" with internet, a third-party app is the culprit.
5. Reboot normally and uninstall recently installed VPN, firewall, or network management apps.

Step 10: Factory Reset (Last Resort)

If nothing else works and the error appears on every network including mobile hotspots:

1. Back up all data via Samsung Smart Switch or Settings > Accounts and Backup.
2. Go to Settings > General Management > Reset > Factory Data Reset.
3. Confirm and allow the reset to complete (10–20 minutes).
4. During initial setup, connect to Wi-Fi — if it now works, a software corruption was the root cause.