enable 802.11ac on SSID

kaso_baxtiar · ‎10-05-2023

Guys, as you can see in the attached picture I noticed that some ssids operate in 802.11ac while the other ssids are only broadcast in 802.11n even though they are using the same access point.

So where can I change that?

marce1000 · ‎10-05-2023

- Examine the WLAN parameter(s) for the involved SSID(s) , such as radio related settings,

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

kaso_baxtiar · ‎10-06-2023

Thanks for your reply sir.

I compared the settings and parameters between these SSIDs and they look the same, Can You be more specific about which parameter could change that ?

Appreciate you help

Leo Laohoo · ‎10-05-2023

That is up to the capabilities of the wireless NIC. If the wireless NIC can only support 802.11b then it will advertise (think of it as "bragging") as 802.11b/n. And if the wireless NIC is capable of 802.11ac then it will advertise as 802.11a/ac

kaso_baxtiar · ‎10-06-2023

thanks for your answer Leo.

but both radios 802.11n and 802.11ac is from the same Access points so basically the AP is capable for advertising 802.11ac but in some SSID.

Rich R · ‎10-06-2023

What is that screenshot taken from?
What model of Cisco WLC are you using?
What version of software is that WLC running?

------------------------------
Please click Helpful if this post helped you and Select as Solution (drop down menu at top right of this reply) if this answered your query.
------------------------------
TAC recommended codes for AireOS WLC's and TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's, Best Practices for 9800 WLC's and Cisco Wireless compatibility matrix
Check your 9800 WLC config with Wireless Config Analyzer using "show tech wireless" output or "config paging disable" then "show run-config" output on AireOS and use Wireless Debug Analyzer to analyze your WLC client debugs
Field Notice: FN63942 APs and WLCs Fail to Create CAPWAP Connections Due to Certificate Expiration
Field Notice: FN72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Required
Field Notice: FN72524 IOS APs stuck in downloading state after 4 Dec 2022 due to Certificate Expired
- Fixed in 8.10.196.0, latest 9800 releases, 8.5.182.12 (8.5.182.13 for 3504) and 8.5.182.109 (IRCM, 8.5.182.111 for 3504)
Field Notice: FN70479 AP Fails to Join or Joins with 1 Radio due to Country Mismatch, RMA needed
How to avoid boot loop due to corrupted image on Wave 2 and Catalyst 11ax Access Points (CSCvx32806)
Field Notice: FN74035 - Wave2 APs DFS May Not Detect Radar After Channel Availability Check Time
Leo's list of bugs affecting 2800/3800/4800/1560 APs
Default AP console baud rate from 17.12.x is 115200 - introduced by CSCwe88390

kaso_baxtiar · ‎10-06-2023

Dear Rich,

Thanks for your help

the screenshot was taking from netspot app

cisco wlc model =AIR-CT5508-K9

AP models is 3502i and 3802i

Rich R · ‎10-06-2023

Well that solves your problem then...
The 3502 is a very old, end of support, 802.11n AP - it cannot support 802.11ac!
https://www.router-switch.com/cisco-air-cap3502e-i-k9-datasheet-pdf.html
https://www.cisco.com/c/en/us/obsolete/wireless/cisco-aironet-3500-series.html

Only your 3802 APs will support 802.11ac - they are 802.11ac Wave 2 APs.

https://www.cisco.com/c/en/us/products/collateral/wireless/aironet-3800-series-access-points/datasheet-c78-741682.html

------------------------------
Please click Helpful if this post helped you and Select as Solution (drop down menu at top right of this reply) if this answered your query.
------------------------------
TAC recommended codes for AireOS WLC's and TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's, Best Practices for 9800 WLC's and Cisco Wireless compatibility matrix
Check your 9800 WLC config with Wireless Config Analyzer using "show tech wireless" output or "config paging disable" then "show run-config" output on AireOS and use Wireless Debug Analyzer to analyze your WLC client debugs
Field Notice: FN63942 APs and WLCs Fail to Create CAPWAP Connections Due to Certificate Expiration
Field Notice: FN72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Required
Field Notice: FN72524 IOS APs stuck in downloading state after 4 Dec 2022 due to Certificate Expired
- Fixed in 8.10.196.0, latest 9800 releases, 8.5.182.12 (8.5.182.13 for 3504) and 8.5.182.109 (IRCM, 8.5.182.111 for 3504)
Field Notice: FN70479 AP Fails to Join or Joins with 1 Radio due to Country Mismatch, RMA needed
How to avoid boot loop due to corrupted image on Wave 2 and Catalyst 11ax Access Points (CSCvx32806)
Field Notice: FN74035 - Wave2 APs DFS May Not Detect Radar After Channel Availability Check Time
Leo's list of bugs affecting 2800/3800/4800/1560 APs
Default AP console baud rate from 17.12.x is 115200 - introduced by CSCwe88390

kaso_baxtiar · ‎10-09-2023

Hey Rich.

I Checked again and I saw that the situation happened in the same AP meaning in one AP one of the SSIDs is in 802.11ac and another SSID operating in 802.11n .

Please check this picture.

JPavonM · ‎10-10-2023

Well you may know that 802.11ac is only supported on the 5 GHz radio, and 2.4 GHz will operate using standard 802.11n.