A guided TFTP Server recovery tool for macOS
Use this workflow when an ASUS router is expected to enter Rescue Mode and accept firmware through an active TFTP upload. ASUS provides a Windows Firmware Restoration path for some models; on macOS, you need to prepare the wired IP, local timing, firmware file, and TFTP behavior carefully. Router Recovery helps confirm the rescue response before upload, but the router still controls firmware acceptance, writing, and reboot.
TFTP: a simple local file-transfer method. In this ASUS workflow, Router Recovery checks the rescue response and then guides active firmware upload where applicable.
WRQ / ACK0: the early TFTP write-request and acknowledgement signal used to confirm that the ASUS rescue service is responding before firmware data is sent.
Purchased app: the Mac App Store app state required to use guided ASUS firmware data upload.
Upload completion: the point where the file has been sent. It is not the same as firmware writing, reboot, or verified recovery.
Use it when your ASUS model guide describes Rescue Mode or Firmware Restoration style recovery and you have matching official ASUS firmware. If your model uses a browser page, serial recovery, or another vendor process, follow that path instead.
Some official ASUS instructions assume the Windows Firmware Restoration utility. On a Mac, the practical work is different: set the temporary Ethernet IP, keep the recovery link local, handle the brief Rescue Mode timing window, and confirm the router response before sending firmware.
For the tested ASUS Rescue path, set the wired Mac interface to 192.168.1.10 with subnet mask 255.255.255.0. Keep Router/Gateway empty on that interface so the rescue link stays local.
Select official ASUS firmware before starting the response check. Router Recovery 2.1 accepts ASUS rescue firmware extensions such as .trx, .w, and .pkgtb, but it does not validate that a file is correct for every ASUS model.
Follow the model-specific button sequence, commonly involving Reset while reconnecting power until the power LED indicates Rescue Mode. The exact timing and LED signal can vary.
The safer sequence is to confirm the router returns the expected WRQ/ACK0 rescue response before sending firmware data. This reduces blind uploads and keeps the ASUS path separate from passive OpenWrt-style TFTP.
Router Recovery is now a paid Mac App Store app, with no in-app purchase unlock. If the rescue window expires, put the router back into Rescue Mode and check again.
When Router Recovery says upload finished, the router may still be writing firmware. Keep power connected, wait several minutes, return Mac Ethernet to DHCP, and then check the admin page and firmware version.
RT-AC86U and RT-AX86U are the clearest reference devices for this workflow. Other ASUS routers should remain candidate paths until verified.
No. It is a guided Mac-side workflow for ASUS Rescue / active TFTP behavior where applicable. Follow official model instructions when they require a specific utility or process.
The rescue Ethernet link is local. Leaving Router/Gateway empty helps avoid routing recovery traffic through the wrong interface.
No. Keep power connected while the router may still be writing firmware. A normal power cycle may be needed later only after waiting and following the model guidance.