Download Firmware Asuswrt-Merlin 378.52_2

Asus uses Tomato-derived firmware called Asuswrt for its newer routers, such as the RT-N66U and RT-AC66U. This firmware is open source except for a few drivers, the binaries of which are included.

Asuswrt-merlin is a modified version of the original firmware that includes bug fixes and minor improvements, but still tries to stay close to the original, so that it remains possible to add new features that Asus introduces to the code. Version 378.52 was released a few days ago and there is already a successor. Below is the list of changes.

Asuswrt-merlin 378.52_2

Changed:

• Updated AiCloud prebuilt binaries for MIPS models
• Applied kernel patch for MIPS kernel ported from 376_3861, related to CTF support

Fixed:

• AiCloud would fail to start unless you had HTTPS enabled for the webui (causing the key/cert to be missing)
• DDNS hostname would become corrupted after backing up your router configuration (Asus bug)

Asuswrt-merlin 378.52

New:

• Merged with Asus GPL 378_4608
• Added ECDHE support to the webui (when accessed over HTTPS)
• The DHCP server can now provide a second DNS to its clients
• You can tell the router not to advertise itself as a DNS
• 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
• 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.
• The selected refresh rate of the Wireless Clients page will be saved to a cookie
• Removed obsolete (non-safe) ciphers such as RC4 from the router’s https webui
• Updated OpenSSL to 1.0.0r
• Removed Turbo button support from webui, as that feature doesn’t work with the current bootloader everyone is using now (RT-AC68)
• 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)
• Wifi PSK wasn’t blurred until activated (regression from 378.51)
• Samba’s custom config/postconf were ignoring the state of the global option to enable them (they would always be used)
• Samba’s custom config/postconf usage wasn’t logged
• 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)
• NAT rules could occasionally fail to be applied (patch by john9527)
• 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)
• USB menu was removed instead of Parental Control on DPI-enabled models
• QoS page was still available on the AP/RP modes on DPI-enabled models
• Error on OpenVPN Server page if using a DHCP pool for connected clients.
• 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)
• mtd-erase was unable to erase the brcmnand partition, which is used as the JFFS2 partition starting with the RT-AC66U (patch by benoitm974)
• 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.
• RT-AC3200 port numbering was reversed on the Sysinfo page.