EA9400

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Availability

Danger

This model has been Discontinued by Linksys. Consider upgrading to a different model!

Performance

Wireless Performance Explained

Advertised Speeds

This model advertises speeds of 2166.5 mbps on 5Ghz band. However, they are advertising 1024-QAM (which is 25% faster than 256-QAM), which is not part of 802.11ac specification. Since there are no client devices that support this, we can skip these claims. Realistic speeds are listed below!

Advertised Speed of 5Ghz band

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

  • 4 spatial streams x 433.3 mbps/stream = 1733.2 mbps

Important

This is classified as a “Top-Performer” and therefore the fastest 802.11ac wifi system.

Security

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

Firmware Changelog

Does this support automatic firmware updates? Nothing in the manual about this. If you have this model, and are running the latest firmware, contact us.

Download the latest firmware from linksys.com

1.0.3.181249 (2017-06-29)

  • Resolved intermittent issue of MAC filtering on wireless network not working properly
  • Resolved issue of IPv6 incompatibility when prefix is not 64-bit
  • Resolved issue of DHCP reservation feature not working properly if user changes local network configuration
  • Resolved issue of PPPoE detection overriding DHCP detection in a dual server environment on WAN even though DHCP is first detected
  • Addressed an issue of notification function of the product
  • Enhanced system stability
  • Various minor bug fixes and enhancements
  • Addressed IOActive security issues
  • Additional security fix

1.0.3.177204 (2016-12-28)

  • Addressed issue with detection of large external storage drive (e.g. 8TB or larger) on USB 3.0 port
  • Addressed issue with IPv6 connectivity when Wi-Fi is disabled
  • Various security fixes

1.0.3.175250 (2016-08-17)

  • Resolved issue of running into Error 2118 when user tries to access admin page (web GUI) of router via IP address or myrouter.local, and IPv6 has been enabled.
  • Various security fixes
  • General bug fixes

1.0.2.174688 (2016-08-01)

  • Initial release