My initial impressions about AX86U were wrong. The router arrived with Asuswrt 46061 pre-installed and was updated immediately to the new Asuswrt 49447. Then it was flashed to Asuswrt-Merlin 386.7 firmware. The test results were quite disappointing compared to AC86U, described here:
Just wanted to say thanks to @eibgrad for the PoC and the concept code, and for @SomeWhereOverTheRainBow for the heavy testing and implementation... it's fantastic how you overcame this serious flaw using this method. Raising a glass in your honor! And serious thanks to @Oracle for his...
www.snbforums.com
But... today I had the time to test Asuswrt 46061 and Asuswrt-Merlin 386.5_2 on AX86U and it shows almost identical performance to AC86U to my test AC clients with very close signal strength numbers reported and real transfer speeds, on any channel. I like better the wireless drivers in GPL 46065 used for Asuswrt-Merlin 386.5_2.
@Smokey613 findings were the reason for my testing today and I can confirm AX86U works better on Asuswrt-Merlin 386.5_2 firmware, at least in my Wi-Fi environment and with my test clients.
This is unrelated to RMerlin's work - different Asuswrt wireless drivers. For some reason the previous AX86U drivers work better.