EA6400

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Availability

Since this product is advertised on Linksys, this model is currently being manufactured.

Performance

Wireless Performance Explained

Advertised Speed of 5Ghz band

Theoretical 802.11ac speed on 5Ghz band (using 80Mhz channel, 256-QAM, 400 ns GI):

  • 3 spatial streams x 433.3 mbps/stream = 1299.9 mbps

Note

This is classified as a “Mid-Performer” 802.11ac wifi system. If higher performance is needed, consider upgrading to a “Top-Performer”. Read: What’s the fastest 802.11ac (wifi5) wifi system possible?

Security

  • WPA2-Personal (128-bit encryption)
  • WPA2-Enterprise (128-bit encryption)

Firmware Changelog

Does this support automatic firmware updates? Yes.

Tip

To stay up-to-date, make sure to enable “Automatic Firmware Upgrade” from the dashboard.

Download the latest firmware from linksys.com

Caution

This model hasn’t received updates in over 1 year. Consider upgrading to a different model!

1.1.40.184085 (2017-10-18)

  • Integrated multiple security fixes
  • Fixed connectivity issues to some GUI pages using IPv6 addresses
  • Restored GUI access through myrouter.local

1.1.40.176337 (2016-10-28)

  • Restored support for non-FCC country codes
  • Enforced authentication of .cgi pages through a login prompt
  • Integrated multiple security fixes
  • Integrated general bug fixes

1.1.40.172334 (2016-05-18)

  • Firmware for US units is now digitally signed to comply with FCC requirements
  • Transmit power table for the U-NII-3 band is now compliant with FCC 15.407 rules.

1.1.40.160989 (2014-05-20)

  • Integration of BSP 6.37.14.62
  • Updated libupnp to v1.6 to address a security vulnerability

1.1.40.153731 (2013-10-16)

  • Internet Explorer 11 support
  • Fixes issue where inappropriate “Internet Connection is Down” error appears after router reboot or setup
  • Translation improvements in several languages

1.1.39.149770 (2013-03-20)

  • Guest network is no longer restricted to an x.y.3.z subnet.
  • Improved the webUI response time when USB storage is being accessed.
  • Improved the 2.4GHz auto-channel selection algorithm.
  • Improved performance in bridge mode.
  • Improved memory management for the media server.
  • Added static DNS support for the guest network.
  • Bug fixes in Linksys Smart Wi-Fi setup.

1.1.35.148797 (2013-03-01)

  • Initial release