ASUS GT-AC2900 AC2900 Dual-Band Gaming Wireless Router | ModemGuides
The Telus Arcadyan hubs are among these - mine is at the right “bad” firmware number… “Millions of home Wi-Fi routers under attack by botnet malware — what you need to know” :
How to Flash a Wi-Fi Router (with the example of TP-LINK TL- WR841N)
How to do a firmware update for any kind of device - Digital Citizen