5Ghz wifi stopped working on AC66U

[kreutpet]

Hi ,

my AC66U with 380.66_6 stopped showing the 5GHz wifi.
The settings are all ok and on the Web UI the 5GHz is enabled.

The dmesg show that the eth2 which should be initialized during startup is not created.
What could be the route cause for this?
Is it a hardware issue ?
How can i investigate where the problem could be?

Thanks

 

[kreutpet]

Hi,

i did some further investigations on the router and tried hard reset (30-30-30).
After that the 5GHz Wifi came back.
very strange

Thanks

 

[Grisu]

there is no 30-30-30 reset on Asus routers, never been, just the reset with button or WPS while powering on or in GUI.

 

[kreutpet]

there is no 30-30-30 reset on Asus routers, never been, just the reset with button or WPS while powering on or in GUI.

thanks, will try next time the 5Ghz stops working.
Still strange why the 5GHz stops working.