Asus XT8 Wireless back haul issue 2nd node

[DangErXeTER]

Hello! I have an issue with 2nd wireless backhaul, tried to switching nodes between and the main router. Current Firmware: 388.2_2_0-gnuton1. I also reset settings on all routers, tried different channels 80 mhz / 100 channel. After rebooting the whole mesh system it works fine, nodes at 5 ghz, but after a while, one node drops to 2.4 ghz. The only thing that helps is to reboot the whole system again, and that's for a couple of hours and then it happens again.

 

[kildare]

See:

Replacing an XT8 main node (AP mode) with a ROG Rapture GT-AX11000 Pro: is worth?

Hi, I have a large 3 floor building with concrete/brick internal walls, and a mesh network (AP mode) consisting in a main XT8 and 5 XT8s, 3 of them are connected via a 2.5 GBe ethernet backhaul, 2 connected via the 5GHz-2 backhaul. Now running latest firmware v. 3.0.0.4.388.23285 (anyway tested...

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My solution:
Try these settings in 5GHz-2 wireless General tab

Wireless Mode: N/AC/AX mixed
Channel bandwidth: 20/40/80/160 MHz
Enable 160 MHz (this is optional)
Control Channel: Auto