E5400 Downloads
The hardware version is located beside or beneath the model number and is labeled version, ver. or V. If there is no version number beside the model number on your Linksys product, the device is version 1. If you still have trouble finding your version number, see the complete article to learn more.
Select your hardware version:
Firmware
Ver. 1.0.00.037
Latest Date: 5/17/2022
Download 8.7 MB
Release Notes
NOTE: After downloading the firmware, you need to load the file to your router to improve its functionality. For instructions on how to update the firmware of your Linksys Dual-Band WiFi Router, click here.
E5400 Document
E5400 User Guide