AC87U 2.4GHz and LAN 2,3 ports not working

[RAH-66]

The RT-AC87U does not run the 5 GHz wifi off Asuswrt, but off a separate firmware developped by Quantenna.

I change ONLY in CFE territory_code=EE/01 to territory_code=CN/02 and setup in professional settings region Australia, working fine on stock AsusWRT and MerlinWRT

 

[lifeisfun]

firstly if the 2.4 ghz works on stock asus try flashing back to a slightly older version of stock firmware, then complete a factory reset,then flash to most current stock asus firmware then factory reset, then flash over to most recent version of merlin firmware, and perform another reset.

one thing come to mind that could have gone wrong here, first if the version of stock firmware that was on originally was on the 87U was a really old version and you flashed to most recent merlin from that, there could have been aaaaallllooooottt of changes between that point to merlins firmware. it would be recommended to first flash the most recent stock 87u firmware before attempted to flash to most recent merlin firmware.

i already did that trying to get it working, sadly no change
Even tried the oldest versions I could find.

 

[Swistheater]

i already did that trying to get it working, sadly no change
Even tried the oldest versions I could find.

I am sorry to hear, sounds like hardware failure, you could try whatever CFE modifications that were suggested to see if that fixes the issue, but tread cautiously.

 

[lifeisfun]

Even after the CFE alternation it will not show the 2.4Ghz network, warranty expired open to any suggestions no matter how brutal