I have a Mediacom 1 gb internet service. When I test wired connection on speedtest.net. I always get at or close to 1gb speeds. Wifi on the other hand not so much. I average probably 250mb with rare but occasional over 400mb. Ive tried almost everything I can think of. Updated to the latest version of ASUSWRT merlin(which disabled the 5G radio and I couldnt get it working again, so had to revert back to standard ASUS firmware. Shutting off WiFi6. Shutting down AIProtection, shutting down IP6 firewall. Dedicating 5 GHZ to 80 MHZ and setting 2.4 to use channel 6. Separating 2.4 and 5 to seperate SSID. Nothing helped. My previous router, an ASUS RT-AC3100 often got 500mb+ speeds on wireless. All of my clients have AC adapters. Any ideas?