9 downloads · Added on: Dec 4th, 2018 · Manufacturer: ASUS
The AsusWrt-Merlin firmware was developed with the primary goal of boosting the original ASUS firmware, fix bugs and also add new improvements. This package includes a customized firmware targeted at ASUS routers that brings various changes without modifying the interface of the original firmware.


- NOTE: Asus has put the RT-AC56U on their End of Life list, meaning no further firmware releases from them. Since it's impossible for me to support models without matching GPL releases from Asus, I also have to retire the RT-AC56U. 384.6 is the final release for that model.
- NOTE: The RT-AC3200 and RT-AC87U are not supported by this release, Asus hasn't released any updated code yet for these models.
- NEW: Added RT-AX88U support (based on GPL 384_4736).
- NEW: Merged with GPL + binary blobs from 384_32799 (all supported models except RT-AX88U)
- NEW: Add LZ4 V2 option to OpenVPN compression (more effective at handling already compressed data)
- NEW: Added "extend" support to SNMP.
- NEW: Added CleanBrowsing to DNSFilter supported services.
- NEW: Webui HTTP LAN port can now be changed from the default 80.
- NEW: Added support for the Netfilter TEE target.
- CHANGED: Removed watchdog from OpenVPN clients, to avoid conflicting with more advanced configurations.
- CHANGED: Vsftpd TLS mode will now reuse the web server certificate (including any Let's Encrypt generated one).
- CHANGED: SSL crypto/cipher hardening for httpd (themiron)
- CHANGED: Syslog will now ignore bwdpi debug output (themiron)
- CHANGED: Reworked Wireless Log page, adding a new button to view low-level details (what stock firmware shows on its Wireless Log page), and removed redundant option to display DFS channel details.
- CHANGED: Updated dnsmasq to 2.80-7-g24b8760 (themiron)
- CHANGED: Updated nettle to 3.4
- CHANGED: Updated net-snmp to 5.8
- CHANGED: Updated openssl to 1.0.2q
- CHANGED: Migrated /jffs/ssl/ content to /jffs/.cert (to share the same folder used by Asus stock)
- CHANGED: Re-enabled WTFast on non-HND models (curl-related crash has been fixed). This is still untested.
- CHANGED: Updated CA bundle to October 17th 2018 version.
- CHANGED: Support search domains pushed by a remote OpenVPN server
- FIXED: UOPNP port forwarding not working in CGNAT/double NAT scenario even if proper ports were forwarded upstream.
- FIXED: Pages based on table.js (like the port trigger one) would fail to work properly under Firefox (Michael Ziminsky)
- FIXED: Dnsmasq issues when running in non-router mode (John Bacho)
- FIXED: Routing issues when in non-router mode (John Bacho)
- FIXED: Bug in curl that could cause some applications to crash on non-HND models
- FIXED: IFTTT failing to start on non-HND models (caused by curl issue).
- FIXED: Webui could complain about port 8080 being reserved for http WAN port (which is no longer supported)
- FIXED: Cannot change image for device with a vendor name containing an apostrophe (like Micro-Star int'l) (Asus bug)
- FIXED: OpenVPN client download was capped by Adaptive QOS upload limit (fix devised by FreshJR)
- FIXED: OpenVPN custom config might be lost after a reboot on the RT-AC86U.

Installation Notes:

- This custom firmware can be applied like any regular update.
- You should not need to reset to factory defaults.
- You can revert back to an original ASUS firmware at any time.
- Do not load a saved copy of your settings. 

About Router Firmware:

Before you consider downloading this firmware, go to the system information page of the router and make sure that the currently installed version isn't either newer or matching this release.

Due to the large variety of router models and different methods for upgrading the device, it is highly recommended that you read and, above all, understand the installation steps before you apply the new firmware, even if you are a power user.

In theory, these steps shouldn't be much of a hassle for anyone, because manufacturers try to make them as easy as possible, even if they don't always succeed. Basically, you must upload the new firmware to the router through its administration page and allow it to upgrade.

If you install a new version, you can expect increased security levels, different vulnerability issues to be resolved, improved overall performance and transfer speeds, enhanced compatibility with other devices, added support for newly developed technologies, as well as several other changes.

If you're looking for certain safety measures, remember that it would be best if you perform the upload using an Ethernet cable rather than a wireless connection, which can be interrupted easily. Also, make sure you don't power off the router or use its buttons during the installation, if you wish avoid any malfunctions.

If this firmware meets your current needs, get the desired version and apply it to your router unit; if not, check with our website as often as possible so that you don't miss the update that will improve your device.

RT-AC3100 Router AsusWrt-Merlin Firmware AsusWrt-Merlin Router Firmware ASUS RT-AC3100 Router Custom Firmware RT-AC3100 Firmware AsusWrt-Merlin ASUS

C: \ Router / Switch / AP \ ASUS
OS Independent
  file size:
37.4 MB

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver.

Problems can arise when your hardware device is too old or not supported any longer.