12-20-2018 11:56 PM - edited 07-05-2021 09:37 AM
Hi everybody,
I think everything is in the title :).
I'm looking for a way to enforce wireless client to connect to 5ghz network (in the case of both 2.4 and 5ghz are configured) without the band select feature that is not recommended when we use "Voice" on wireless. I was thinking to lower the power of the 2.4Ghz wifi (in TPC tab) to force client to connect to the 5Ghz.
Do you think that it could be a good solution? Do you have any other idea to achieve this goal?
FYI: we have the 8.3.143 version of AireOS on WLC 5508.
Many thanks,
Greg.
12-21-2018 12:15 AM
12-21-2018 01:10 AM
why the need to enable 2.4GHz when you want to force 5GHz?
create one SSID 5GHz only for clients that can use this, no need to switch to 2.4 GHz
create another for clients that do not support 5GHz
use AP groups to enable the second SSID only on a limited number of AP's
12-21-2018 02:52 AM
Hi Pieterh,
Thank you for your response. I answered to your question bellow:
why the need to enable 2.4GHz when you want to force 5GHz?
create one SSID 5GHz only for clients that can use this, no need to switch to 2.4 GHz
create another for clients that do not support 5GHz
use AP groups to enable the second SSID only on a limited number of AP's
Best regards,
Greg.
12-21-2018 03:08 AM
then your question to "force" 5GHz connectivity does not describe your problem.
your option is to modify the client device wireless network setting to "prefer" 5GHz where possible,
you may include this somewhere in the client installation process
or If AD connected you can create a domain policy to push the setting to the clients
12-21-2018 05:36 AM
Yes we can do it for laptops managed by AD. But do you think there's a solution for smartphone and tablet (BYOD devices) without used MDM solution?
Let me describe our problem in more detailled:
Actually, we used a SSID for BYOD that include smartphones, Tablest, and legacy devices like barecode scanners (only work in 2.4ghz). But we use "skype for business" on smartphones and tablets for communication. Actually, we see that we have some communication problems (call drop) with skype when client move in the building. So I was wondering if the issue doesn't came during the roaming process with "band select" enabled on the wireless? So this is why I'm looking for a solution to disabled "band select" feature and also have the benefit of the 5Ghz band (less noise than 2.4Ghz and much bandwidth).
What do you think about this case? Do you think we have to change our wireless design to solved this problem?
Thanks,
Greg.
12-21-2018 06:04 AM
You are talking about a complex environment, where wifi, qos and other network parameters need to be tuned to each other
so there is no easy answer.
please read these documents for reference and to check if and where your design differs
Enterprise Mobility 8.5 Design Guide
Microsoft Lync Client/Server in a Cisco Wireless LAN
12-21-2018 02:41 PM
@g.ska wrote:
Actually, we see that we have some communication problems (call drop) with skype when client move in the building.
Like I said, the wireless clients make that final & ultimate decision which AP to join and which radio(s) to use.
What kind of wireless clients see this "call drop"? Android? Apple? Windows?
07-19-2019 04:34 AM
>>> It's an option but we want to avoid to create more SSID in our infrastructure to save "airtime" <<<
if you got one ssid's using 5GHz only and a different using 2.4GHz only , there is no increase in "airtime"???
NB! the airtime problem is mainly in 2.4GHz band using 802.11b speeds
so there should be little impact when creating an extra ssid that uses 5GHz only.
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