In This Guide WiFi Not Working on One UI 8 — Definitive Guide to Fix All Connectivity Issues.With the release of Samsung’s One UI 8, there are various performance upgrades, redesigned menus, and improved stability, but users have experienced a drop in their WiFi connection. Some devices that have updated to One UI 8 fail to connect, drop WiFi randomly, or even refuse to detect WiFi 6/5GHz networks entirely.
This detailed troubleshooting guide offers more than 10 tested solutions to help you regain a stable WiFi connection on any Samsung device with One UI 8. Every solution has been tested, clarified, and broken down into steps for your success.
Each method explained below aims at a different cause of the situation, which could be from incorrect network stacks to buggy One UI 8 network modules.
1. Turning Off and On Airplane Mode to Refresh Network Stack
The problem with the device’s network stack is usually solved by turning off and on the Airplane mode, which in turn gets rid of temporary WiFi glitches.
Steps:
- Swipe down twice from the top to reveal the Quick Settings panel.
- Tap Airplane Mode to turn it on.
- Wait for 10-15 seconds. Ll Disable Airplane Mode.
- Turn off Airplane Mode.
- Connect to your Wi-Fi network again.
2. Activating WiFi Safe Mode (Developer Option Fix)
One UI 8 features advanced WiFi security measures that may cause compatibility issues with WiFi 6 routers. Enabling WiFi Safe Mode helps to fix that.
Steps:
- Forget your current WiFi 6 network (Settings → Connections → WiFi → Network → Forget).
- Head to Settings → About Phone → Software Information.
- Press Build Number seven times rapidly.
- Return to the main settings menu → Developer Options.
- Check the box for WiFi Safe Mode.
- Connect to your network, set Static IP, and select Use Phone’s MAC.
- Power off and then on your phone.
3. Turn Off Intelligent WiFi (Auto Switching Issue)
Sometimes the Intelligent WiFi module can interfere with the joining of networks.
Steps:
- Settings → Connections → WiFi.
- Tap the three-dot menu → Advanced.
- Turn off
- Turn on WiFi Automatically
- Switch to Better WiFi Automatically
Try reconnecting and testing again.
4. Install Pending One UI 8 or Security Updates
Generally, Samsung releases hotfix updates that are small in size but are aimed at fixing early-build WiFi bugs.
Steps:
- Settings → Software Update.
- Choose Download and Install.
- Carry out the update and restart the device.
5. Switch to a Private DNS (Fixes DNS Routing Errors)
DNS routing issues may be the reason why pages do not load even though the WiFi connection status is “connected”.
Steps:
- Open Settings → Connections → More Connection Settings.
- Tap on Private DNS → Private DNS Provider Hostname.
- You can use any one of these DNS providers:
| Provider | DNS Hostname |
|---|---|
dns.google | |
| Cloudflare | 1dot1dot1dot1.cloudflare-dns.com |
| AdGuard | dns.adguard.com |
To save the changes and verify the proper functioning of the network, just tap Save and test the network.
6. IP Settings Switching from DHCP to Static
It is known that an IP dynamically assigned by DHCP may stop working after a major upgrade of the OS.
Steps:
- Settings → Connections → WiFi.
- Tap your WiFi network → Settings icon.
- Select Advanced.
- Change IP Settings under: DHCP → Static
- Save the settings and reconnect.
7. Disable Fast Transition (802.11r WiFi Roaming)
Samsung One UI 8 devices with 802.11r technology can have problems, especially if the router is WiFi 6 AX.
Steps:
- Open your router panel: http://192.168.0.1http://192.168.1.1
- http://192.168.0.1
- http://192.168.1.1
- Log into your router admin dashboard.
- Go to Wireless Settings → Security.
- Disable: Fast Transition (802.11r)
- Save the changes and power cycle the router.
8. Reset Mobile Network Settings
It will reset SIM, WiFi, and APN settings without removing the existing data.
Steps:
- Settings → General Management → Reset.
- Tap on Mobile Network Reset.
- Reset settings.
9. Reset WiFi & Bluetooth Settings
This will remove all the saved networks and paired devices, but the Wi-Fi modules will be completely refreshed.
Steps:
- Settings → General Management → Reset.
- Choose Reset Wi-Fi and Bluetooth settings.
- Press the Reset Settings button.
- After that, manually connect to your WiFi network.
10. Perform a Factory Reset on Your Device (Last Resort)
The only way to solve the problem if the system-level WiFi drivers got corrupted due to an OS update is by doing a clean install.
Steps:
- Save all the data on the device (Samsung Cloud or Smart Switch).
- Settings → General Management → Reset → Factory Data Reset.
- Tap Reset → Delete All.
- Provide Samsung account information.
- Configure the device again and check WiFi.
Additional Pro Tips to Fix One UI 8 WiFi Issues
✔ Restart Your Router & Modem
When you reboot, the routing tables are refreshed, and any IP conflicts are removed.
✔ Remove VPN or Firewall Apps
Certain VPNs may prevent WiFi 6/5GHz connections from working.
✔ Change Router BandA
You can switch your connection like this:
- 5GHz → 2.4GHz
- WiFi 6 → WiFi 5
✔ Forget All Networks
This will internally reset network priority preferences.
✔ Disable Battery Optimization for WiFi
- Settings → Apps
- WiFi → Battery
- Change to Unrestricted
WiFi Not Working on One UI 8 — Conclusion
This comprehensive troubleshooting guide offers every possible solution to the problem of WiFi not working on One UI 8. The fixes range from simple resets to complex router configurations. These workarounds fix:
- WiFi 6/5GHz not connecting
- Constant disconnections
- Internet not working despite being “Connected”
- DNS and routing issues
- OS-related WiFi bugs after update
It is most likely that implementing the remedies step by step will stabilizeWi-Fi connection on any Samsung smartphone with One UI 8.
In case you are facing other One UI 8 Error, you can ask for a specific solution here.
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