Roaming between 5 and 2.4 Bands

[tpahuja]

Folks,

        We have a warehouse environment. We are advertising the SSID over both the bands(requirement).

What we noticing is that when a user roams sometimes he is connected to the A band and sometime to the B band and when the transition happens he loose a couple of ping packets. What can be done to improve the roaming between bands. Using singe band is not possible. Band select is enabled on the Wlan.

[patoberli]

Band select might be the reason for the problem you are seeing. This will cause delays if the client tries to connect to the 2.4GHz although he should have a strong enough signal for 5 GHz.
I suggest to test it with this feature disabled on the SSID.
You are testing the Ping from Client -> Server or in the other direction?

[tpahuja]

>From the client to the sever. How about I enable 802.11v,r,k for the WLAN?

[patoberli]

Those are features, which have to be supported on the client. If they aren't, or even if they are, they can cause additional compatibility issues.

I have 11k enabled, but disabled "Assisted Roaming Prediction Optimization". I only send the neighbor list.



Did you try with disabled band select?