ubimea
Occasional Visitor
Links to new firmware version 3.0.0.4.378.9460 on ASUS website STILL broken as of the time of this post with identical issue since Friday (25 KBytes broken archive file).
https://www.asus.com/us/Networking/RTAC87U/HelpDesk_Download/
https://www.asus.com/us/Networking/RTAC87U/HelpDesk_Download/