Radio 5Ghz for 9166D1-ROW Access points is not working.

[remacamelo]

Dear all,

  There are 2 Access Points model 9166D1-ROW registered in a Cisco Catalyst 9800-CL Wireless Controller firmware 17.12.3. These APs looks like that are not emitting 5Ghz signal because no devices connect in 5Ghz frequency the devices connect only 2.4Ghz frequency. I can see in the 2.4Ghz Radios the option Operation Status up but to the 5Ghz Radio the option Operation Status down.

Has anyone had a similar problem and managed to solve it?

[Mark Elsen]

  -   - @remacamelo   Verify the state of the AP country provisioning on the AP CLI with show controllers dot11Radio 1 to display the -ROW domain and the country to which the AP is assigned :
                            Look for this  line in the output :
                                          >...
                                          >Carrier  Set:

   Because when  the -ROW access points that do not have a country code assigned the -ROW AP has its 5ghz radio shut down and the 2.4ghz radio operates on standard channels and lower power to avoid any country rule violation.

  M.

[remacamelo]

Hello @Mark Elsen, 

Thank you for your replay. I tried apply the command show controllers dot11Radio 1 but in the WLC I couldn't find this syntaxes

I work with Cisco Catalyst 9800-CL Wireless Controller.

I applied the command sh ap name (AP NAME) dot11 5ghz radio-reset stats and I received this output:

What can I do in this case?

[Mark Elsen]

  - @remacamelo     You need to apply the command  show controllers dot11Radio 1   on the  access point  CLI
                                not the WLC. Further on make sure to assign a join profile to the access point

  M.

[Saikat Nandy]

can I have the 'show tech wireless' output from the WLC in a text file?

[remacamelo]

Hello @Mark Elsen,

Thank you for the explanation. I performed the command correctly now and the result is:

Radio Info Summary:
=======================
Radio: 5.0GHz
Carrier Set: (-RW) Brazil ( BR)
Base radio MAC: C4:18:FC:23:43:00
Supported Channels:

There are no supported channels.

[Mark Elsen]

 - @remacamelo  Do you have that country code provisioned in the join profile assigned to the AP. It must also be specified in the global controller configuration (?)

 M

[Tushank Tewari]

Please check if country code is configured under AP join profile.

show ap profile name <ap join profile name> detailed | i Country

 

[Tushank Tewari]

@remacamelo  As per your problem description ,

• AP model: C9166D1-ROW
• Controller: Catalyst 9800-CL, version 17.12.3

Observations:

• 2.4 GHz Radio → Operational Status: Up
• 5 GHz Radio → Operational Status: Down
• Clients connect only on 2.4 GHz

Can you please share below output from WLC CLI.

show wire country configured
show ap dot11 5ghz rf-profile summary
show ap slots | i <AP NAME>
show ap dot11 5ghz summary | i <AP NAME>
show ap name <AP NAME> config slot 1
show ap name <AP NAME> dot11 5ghz slot 1 radio-reset stats