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ASUS RT-N66U ver. B1 Router Firmware

The ASUS RT-N66U ver. B1 Router Firmware is a powerful and high-performance router. The device offers advanced settings and options to improve the connectivity and usage experience of a wide range of devices. The router is suitable for home or small office use with its Gigabit Ethernet connectivity and dual-band Wi-Fi technology.


The ASUS RT-N66U ver. B1 is a router that can provide wired and wireless devices with connectivity. The device offers users dual-band Wi-Fi routing, ranging from a 2.4 GHz to a speed between 450 to 600 Mbps.


  • The router features an Intuitive user interface, Network status display, and traffic Analyser & reporter.
  • Lightning-fast Gigabit Ethernet connectivity from LAN & WAN interfaces.
  • Supports WPA/WPA2 and 64/128-bit WEP encryption security settings.
  • It can be upgraded to up to 300,000 concurrent data sessions supported across the WAN and LAN sides (5 x n-capable LAS).
  • Multi-Device Ethernet compatibility provides WAN-to-LAN–loopback and MAC/IP filter for added privacy protection.
  • The device features an interesting Traffic Analyzer, including network diagnosis with ping Timeout Alerts and port-forwarding Notifiquation.


  • No. of antennas: 3 External Antennas
  • Max Speed: 600 Mbps
  • Firmware Fixed: CVE-2018-8877 vulnerability potential issues
  • RAM: 256MB of RAM
  • Flash & OS Version: consists of 128mb of built-in memory
  • IPV4 and IPV6 settings supported with DNS and DHCP set up on IEEE 802.11

Known Issues and Troubleshooting

There have been no known major issues of firmware problems while operating systems or applications executing which leads outside labor during cyber-attacks as users need to enable firmware upgrades to renewing the already activated easy-access passwords, encrypting connection settings and certificate problems. More advanced issues like Slow or dropped signal and connectivity, WAN connection troubles may be solved by publishing those problems in blogs, or chats within a web medium provided, dedicated for that device type assistance.

Driver Information

Much like several other peripheral device manufacturers, ASUS ensures that their purchasers are supplied with up-to-date drivers required to guarantee the complete effectiveness of their devices, irrespectively of the hardware or software obtaining from ASUS's availability page of separate device specific sections. Wireless Module Driver is preferable, but users can be manually synchronizing router scripts & settings along with windows devices and protocols.