RT-AC86U - Poor Wifi Range

bbunge

Very Senior Member
I currently see no advantage using Merlin on an AC86U. Believe me, I have tried just about every firmware version on my AC86U out there for the past several months. And I keep going back to Asus. Currently on 384_81992 with no issues using Cloudflare Secure DNS (1.1.1.2 and 1.0.0.2) and Firefox browser with DoH Custom enabled to Cloudflare Secure (https://security.cloudflare-dns.com/dns-query)
Best to do a hard factory reset: see https://www.asus.com/support/FAQ/1039078
Do a fresh config. Use Dual Band Smart connect (same SSID for 2.4 and 5 GHZ), set 2.4 GHZ to 20 MHZ on Channel 1, 6 or 11, 5 GHZ to channel 36 or 149 (non-DFS, I use Channel 36) 20, 40, 80 MHZ. Turn off WPS, Disable UPnP, Set USB Mode to USB 2.0 (helps with 2.4 GHZ operation). I recommend disabling all USB applications as a router is not a very good NAS. You may want to use a new SSID as well. Set the antenna to \ | /
As you know you will get many recommendations. The above works well for me (even though my 5 GHZ tests stronger than 2.4 GHZ my Roku still connects to the 2.4 and streams very well!).
 

K-2SO

Very Senior Member
I currently see no advantage using Merlin on an AC86U. Believe me, I have tried just about every firmware version on my AC86U out there for the past several months. And I keep going back to Asus.
My observations also. There are many advantages in using Merlin, but it become increasingly unstable on my routers after 384.14 version. Had to stay on Asus stock to keep the peace at home in last few months. Had to replace the routers after to keep my own peace. Got tired of reboots and resets.
 

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