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. 2.0.1.177097
Latest Date: 11/14/2016
Download 30.3 MB
Firmware for OpenVPN expired certificate
Ver. 2.0.4.211901
Download 31.0 MB
IMPORTANT: The WRT1900ACS v2 firmware is not compatible with the WRT1900ACS v1.
Firmware
Ver. 1.0.1.174588
Latest Date: 8/8/2016
Download 30.1 MB
Release Notes
Firmware for OpenVPN expired certificate
Ver. 1.0.4.211901
Download 31.0 MB
IMPORTANT: The WRT1900ACS v1 firmware is not compatible with the WRT1900ACS v2.
NOTE: After downloading the firmware, you must upload the file to your router to improve its functionality. For OpenVPN firmware, make sure to reset the router after the firmware update.
