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How to Flash rt-ac68u with AsusWRT-Merlin Firmware

Step-by-step guide to flash your rt-ac68u router with AsusWRT-Merlin firmware, covering downloads, USB setup, upgrade process, and post-flash tweaks.

6 мин чтения

Flashing Your rt‑ac68u with Merlin Firmware

Looking to unlock all the hidden goodies on your rt‑ac68u? Flashing Merlin firmware is the most dependable way to get there. This guide takes you step‑by‑step—from what you’ll need to common hiccups—so you can enjoy the upgrade without a hitch.

What You’ll Need

  • Router model: rt‑ac68u (or other compatible Asus routers)
  • Backup: Save your current settings with the router’s Backup feature
  • USB drive: 4 GB or larger, formatted to FAT32
  • Stable internet connection: Needed to download the firmware
  • Power supply: Keep the router plugged in throughout the process

Flashing the Firmware

  1. Download the latest Merlin firmware Head to the official AsusWRT‑Merlin site, find the rt‑ac68u package, and grab the .bin file: https://www.asuswrt-merlin.com/downloads. Drop that file onto your USB drive.
  2. Insert the USB drive into the router’s USB port and reboot. The router will spot the drive and prompt you to install the new firmware.
  3. Select the firmware file and confirm the upgrade. The router will flash and reboot automatically—don’t interrupt it.
  4. Verify the upgrade by logging into the router’s web interface and checking the firmware version.

After the Flash

  • Enable SSH: Settings → Administration → Enable SSH.
  • Set up VPN server: Services → VPN → Enable and configure.
  • Custom DNS: Network → LAN → DNS settings.
  • Restore backup (if needed): Settings → System → Restore.

Common Issues & Fixes

Issue

Symptom

Fix

Authentication failure

“Login failed” on web UI

Reboot the router and try again.

Login loop

Browser keeps redirecting to login page

Clear browser cache or use a different browser.

Firmware rollback

Router reverts to old firmware after reboot

Re‑flash the same firmware file; do not power off during flash.

VPN disconnects

VPN drops after a few minutes

Disable “Fast Connect” and set a static IP.

Frequently Asked Questions

Q: Can I flash a different firmware on my rt‑ac68u? A: Yes, but ensure it is compatible with your hardware revision and always back up your settings first.

Q: What if the router doesn’t recognize the USB drive? A: Format the drive to FAT32 and retry. Some routers only support FAT32.

Q: Is it safe to use Merlin firmware? A: Merlin is a community‑maintained fork of AsusWRT that adds stability and extra features. It is widely used and considered safe when downloaded from the official site.

Q: How do I revert to stock firmware? A: Download the original AsusWRT firmware for your model and follow the same flashing steps, selecting the stock file.

Enjoy the enhanced performance and flexibility that Merlin brings to your rt‑ac68u. Happy networking!

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rt‑ac68u Merlin Firmware Flash Guide =====================================

Ready to give your rt‑ac68u a fresh start? This step‑by‑step guide will walk you through flashing the rt‑ac68u router with the latest Merlin firmware. Follow the instructions carefully to avoid common pitfalls and keep your router stable.

Prerequisites -------------

  • Router model: rt‑ac68u (or compatible rt‑ac68x series)
  • Backup: Export current settings via the Asus router web UI (Settings → System → Save/Restore).
  • Tools: A computer with a USB cable or Ethernet connection to the router, a web browser, and a stable internet connection.

Once you have everything ready, you’re set to download and flash

NetworkingRouter FirmwareAsus rt-ac68u