Frequent 802.11ac / 802.11bgn change

[iampiotr]

Hello,
we use five AP7632,
users sometimes complain that Wi-Fi is not working.
We noticed that clients very often switch from one mode to another:
802.11ac - 5 GHz
802.11bgn - 2.4 GHz
Almost always when this happens, the user connects to the antenna at the same AP7632 point where he was located, which is bad, because after a couple of seconds he switches back to the old antenna on the same access point.
Sometimes it seems that the client is in one mode for several seconds.
It looks like this frequent switching is causing poor Wi-Fi.
Are there settings to change the transition rule between modes so that this happens less often?
Maybe this is due to some other cause that needs to be eliminated?
(sorry for using an online translator)

[iampiotr]

Hi, 

Tomasz,
thanks for the answer.

Miguel-Angel RODRIGUEZ-GARCIA,
we have observed problems on smartphones and the problem has already been solved in large part with the messages of Christoph S..

Thanks for the answers and help.

[Miguel-Angel_RO]

Hi Piotr,

I assume the wifi client is running Windows. Can you confirm?

If so, what is the level of roaming aggressiveness configured?

I often request to set the highest roaming aggressiveness to avoid “sticky clients”

This is a parameter in advanced, check here: https://www.intel.com/content/www/us/en/support/articles/000005546/network-and-i-o/wireless.html

Mig

[Tomasz]

Hi Piotr,

I’d be careful about coverage hole detection and other side-features of SMART RF. It would be good to analyze possible boundaries for that feature’s behavior to not get things worse when it comes into play (e.g. increasing power too much which could result in impacting other APs on the same channel somewhere farther in the area).

Hope that helps,

Tomasz

[iampiotr]

Hello,

Thanks for the help. I passed the information over to the specialists, we selectively made changes to the recommendations, and they said that the equipment was working better.
Realizing the value of your answers, they also asked:
The equipment has a "Coverage Hole Detection" mode, but it is not enabled by default. Is this due to the fact that there are requirements for the correct operation of this mode, or can it be enabled immediately?

Thanks for answers.

Piotr