Mac IP is wrong
If your Mac is still on DHCP, Wi-Fi, or another subnet, the router may never reach it. Set the active Ethernet adapter to the IP required by the recovery guide.
macOS TFTP router recovery
Why TFTP Router Recovery Fails and How to Fix It
If TFTP recovery failed once, stop and check the environment before another blind retry.
Quick answer
- Confirm the Mac IP and router recovery IP are in the same subnet.
- Verify the router actually entered recovery mode.
- Use the correct firmware file and required filename.
- Check TFTP root folder, firewall, Ethernet cable, and port.
Router is not in recovery mode
Button timing matters. Some routers require holding Reset, WPS, or another button while powering on, and the recovery window may be short.
Firmware file is incorrect
A sysupgrade image, factory image, recovery image, and vendor firmware file are not always interchangeable. Use the image type your model requires.
Firmware filename does not match
Some bootloaders request an exact filename. Rename the file only if the model instructions require it, and avoid hidden extensions such as .bin.zip.
TFTP root folder is wrong
The file must be inside the folder served by the TFTP server. If the app is serving a different folder, the router request will fail.
macOS firewall blocks transfer
Temporarily allow the app or TFTP traffic during recovery. Re-enable normal firewall settings after testing.
Ethernet cable or port issue
Use a direct Ethernet connection when possible. Try another LAN port if the recovery guide names a specific port or the link light never appears.
Final recovery checklist
Router is in recovery mode
Mac IP is set correctly
Firmware file is in the TFTP root
File name matches device requirement
Firewall is not blocking TFTP
Ethernet cable is connected to the correct port
Risk note:
Router recovery depends on your device model, firmware file, and bootloader recovery mode. This app helps prepare the TFTP recovery environment.
FAQ
Why does TFTP timeout during recovery?
The router may not be in recovery mode, the Mac IP may be wrong, or the firmware file cannot be found in the TFTP root.
Should I disable macOS firewall?
You can temporarily allow the app or TFTP traffic for testing, then restore your normal firewall settings.
Can the app guarantee unbricking?
No. Recovery depends on device model, firmware file, and bootloader behavior. The app helps prepare the TFTP environment.