AsusWrt-Merlin Firmware 3.0.0.4.378.52.0 for RT-AC66U Download

Posted at December 22, 2024 by PCI-DB Team

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Device Name	AsusWrt-Merlin Firmware 3.0.0.4.378.52.0 for RT-AC66U
Category	Router Switch Access Point
Manufacturer	ASUS
File Size	29.2 MB
Supported OS	OS Independent

AsusWrt-Merlin Firmware 3.0.0.4.378.52.0 for RT-AC66U Description

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.

Changes:

- NEW: Merged with Asus GPL 378_4608
- NEW: Added ECDHE support to the webui (when accessed over HTTPS)
- NEW: The DHCP server can now provide a second DNS to its clients
- NEW: You can tell the router not to advertise itself as a DNS
- NEW: Experimental Tor support (feature originally developed by Asus, but not available yet on stock firmware). You can enable it in the VPN section of the webui.
- CHANGED: Updated miniupnpd to 1.9.20150309
- CHANGED: You can no longer disable the JFFS2 partition if Traffic Analyzer is enabled. Likewise, you can no longer enable Traffic Analyzer if the JFFS2 partition is disabled.
- CHANGED: The selected refresh rate of the Wireless Clients page will be saved to a cookie
- CHANGED: Removed obsolete (non-safe) ciphers such as RC4 from the router's https webui
- CHANGED: Updated OpenSSL to 1.0.0r
- CHANGED: Removed Turbo button support from webui, as that feature doesn't work with the current bootloader everyone is using now (RT-AC68)
- CHANGED: Performance optimization to the httpd, dropbear and rc services
- FIXED: 2.4 GHz and 5 GHz-1 clients were swapped on the Sysinfo page (RT-AC3200 only)
- FIXED: Wifi PSK wasn't blurred until activated (regression from 378.51)
- FIXED: Samba's custom config/postconf were ignoring the state of the global option to enable them (they would always be used)
- FIXED: Samba's custom config/postconf usage wasn't logged
- FIXED: Some services would fail on their first attempt to start at boot time due to the QTN subsystem taking too long. Implemented patch from Asus which eliminates the long QTN stall at boot time. This resolves the issue where some users had trouble connecting their WAN at boot time (RT-AC87U)
- FIXED: NAT rules could occasionally fail to be applied (patch by john9527)
- FIXED: The Apply button on the Adaptive Bandwidth page had a clickable area so wide that it even covered part of the left side menu. (Asus bug)
- FIXED: USB menu was removed instead of Parental Control on DPI-enabled models
- FIXED: QoS page was still available on the AP/RP modes on DPI-enabled models
- FIXED: Error on OpenVPN Server page if using a DHCP pool for connected clients.
- FIXED: UPNP would be reported as enabled on the security report if it was enabled on the secondary WAN even if Dual WAN itself wasn't enabled. Now we check that Dual WAN itself is also enabled before reporting so. (Asus bug)
- FIXED: mtd-erase was unable to erase the brcmnand partition, which is used as the JFFS2 partition starting with the RT-AC66U (patch by benoitm974)
- FIXED: JFFS2 partition couldn't be formatted for all routers but the RT-N66U (wrong partition name). Also resolved the case where a second reboot was required to mount it.
- FIXED: RT-AC3200 port numbering was reversed on the Sysinfo page.

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.

  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.

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