After update to 6.41.2 lost 5GHz wifi on RB952Ui-5ac2nD-TC

[banderlog]

Just before system update, I had 2 wifi networks - 2.4GHz b/g/n and 5Ghz a/c.
And now 5GHz is gone. Why that?

[BartoszP]

Have you checked if 5ghz interface is not disabled?
What version have you upgraded from?

[normis]

You can always check the logs. Also, like above poster said, tell us what you see in the Interface list of your router.

Another idea - 5GHz is much slower to appear after reboot, because of DFS regulations. It takes some time, so maybe wait a minute, and check again

[banderlog]

Have you checked if 5ghz interface is not disabled?
What version have you upgraded from?

Yes, there is just one wlan interface now.
From 6.41.1

[banderlog]

You can always check the logs. Also, like above poster said, tell us what you see in the Interface list of your router.

Another idea - 5GHz is much slower to appear after reboot, because of DFS regulations. It takes some time, so maybe wait a minute, and check again

I have checked. There is nothing unusual, not a single warning.

More than 15 minutes passed.

[banderlog]

second wlan reappeared after 2 reboots