@Mike79
Troubleshooting TP-Link Archer MR400 2.4 GHz Issue
- Check Settings:
- Log into web interface (http://192.168.0.1).
- Go to Wireless > Wireless Settings.
- Ensure Enable Wireless Radio for 2.4 GHz is checked.
- Set a unique SSID for 2.4 GHz (e.g., "MyHome_2.4").
- Update Firmware:
- Download latest firmware from TP-Link Support.
- In web interface, go to System Tools > Firmware Upgrade, upload file, and update.
- Reset Router:
- Press reset button for 5-10 seconds or go to System Tools > Factory Reset.
- Reconfigure router and check 2.4 GHz settings.
- Check Hardware:
- If 2.4 GHz still fails, it may be a hardware defect. Contact TP-Link support.
- Workaround:
- Use 2.4 GHz guest network temporarily, but set a strong password.
Note: If firmware update/reset doesn’t fix it, report the issue to TP-Link as a potential firmware bug.
