Yes, 6.46beta59 on RB4011iGS+5HacQ2HnD We've not received any e-mail from you with the requested details. Please contact support@mikrotik.com Still have no spare time for thorough testing.. And, as far as I understand, I should encounter that bug once again to make adequate bug report. And I'm stil...

Ooops! It did it again. Wifi 5ghz disappeared

Just to confirm, are you using beta59?

Yes, 6.46beta59 on RB4011iGS+5HacQ2HnD

Ooops! It did it again. Wifi 5ghz disappeared

The only way to speedup fixing it is to distribute this information wide, so anybody who plans to buy Mikrotik think twice.

Colleagues, I completely blocked the CDP / LLDP in the bridge with filters. 5ghz does not fall.

I tried it. Nope, that's not a solution. Still hanging

Looks like frame lifetime = 0.02 work fine. 8 days - all systems nominal

Well. No good. After 14 days wlan1 disappeared again

Looks like frame lifetime = 0.02 work fine. 8 days - all systems nominal

Nope. Playing with channel settings still have no effect.

I cannot explain it, but now it works for 3 days without capsman... Still waiting for a glitch

Just updated to 6.45.2 . Wifi drops immediately, less than in 1 day

I didn't change anything in config. Just upgraded routeros.

is adaptive noise immunity enabled in your config?

I upgraded to 6.45.1 and 5ghz is running and visible for 3 days. It lasts only for 1 day before. Is the issue fixed? Can someone confirm?

Yep, running for 5 days or so. But maybe "adaptive noise immunity" disabling helped also.

5GHz is falling due to the fact that the client starts to reconnect frequently.

So why it fails when there's no clients at all? After a long period of idle?

My observations show that rts/cts disabling may help. Still investigating.