Tech9
Part of the Furniture
I currently have a 400mbps optical fiber internet access, 7 Wifi devices and 1 wired PC
I sometimes upload big files
Thanks to @john9527 Merlin-LTS I could keep it quite current until now
Tell us more about it. Is the ISP line 400Mbps down/up or asymmetrical? What devices are the 7x Wi-Fi clients? How many users do you have in your household? Just the fact you are still using RT-N66U and you have skipped an entire Wi-Fi generation tells me your Internet use requirements are very low. How big are the files and how often do you need to upload them? Do you really need Asuswrt-Merlin on this router? Because even a cheap RT-AX55 will be a huge upgrade for you.
RT-AX55|WiFi Routers|ASUS Global
www.asus.com