Cannot set the channel frequency in the Radio of Cisco Aironet 1572EAC in the 5.0GHz

[jakidaslomoro]

I am trying to  set the freq in the dot11radio1(5.0GHz) but when when  I use channel in the int dot11radio 1, it says that it is invalid. Is there anything that I should do? I thought that it is probably due to DFS but that seems not to be the case.

Thanks for your help

[patoberli]

Can you output a show interfaces?
Or do you try it in the web interface?
Has the AP enough power?

[jakidaslomoro]

The  AP power us enough 

This is actually the issue:

Juba-ACB01-RES#conf t
Juba-ACB01-RES(config)#int dot11radio 1
Juba-ACB01-RES(config-if)#channel 5825
^
% Invalid input detected at '^' marker.

Juba-ACB01-RES(config-if)#

I cannot use channel to set the frequency that I want. It seems channel is either disabled in AP1572 or something else is wrong. 

Juba-ACB01-RES(config-if)#channel ?
% Unrecognized command
Juba-ACB01-RES(config-if)#channel

So channel is not recognised

Thank you for your help!

[patoberli]

Can you enter this command and show the output:
sh controllers dot11Radio 1
Which software version is installed? I'm not 100% sure, but I think you have a Mobility Express based model?

[jakidaslomoro]

Thi

Juba-ACB01-RES#sh controllers dot11radio 1
!
interface Dot11Radio1
Radio Freedom 5, Base Address a453.0e49.39d0, BBlock version 0.00, Software vers ion 4.18.2
Serial number: FOC23245ZT2
Unused dynamic SQRAM memory: 0x0001F3A8 (124 KB)
Unused dynamic SDRAM memory: 0x0032A48C (3241 KB)
Spectrum FW version: 1.15.4
Number of supported simultaneous BSSID on Dot11Radio1: 16
Carrier Set: ETSI (OFDM) (EU) (-E)
Uniform Spreading Required: Yes
Configured Frequency: 0 MHz Channel 0
Serving Frequency: 0 MHz Channel 0 20MHz
Allowed Frequencies:
5500(100) 5520(104) 5540(108) 5560(112) 5580(116) 5660(132) 5680( 136) 5700(140)
Listen Frequencies:
5180( 36) 5200( 40) 5220( 44) 5240( 48) 5260( 52) 5280( 56) 5300( 60) 5320( 64) 5500(100) 5520(104)
5540(108) 5560(112) 5580(116) 5600(120) 5620(124) 5640(128) 5660( 132) 5680(136) 5700(140) 5720(144)
5745(149) 5765(153) 5785(157) 5805(161) 5825(165)

DFS Blocked Frequencies: none
Beacon Flags: 0, Interface Flags 60109, Interface Events 0, Mode 4; Beacons are disabled; Probes are disabled
Configured TxPower: 25 dBm (Level Index 1)
Allowed Power Levels: 25 22 19 16 13 10 dBm
Allowed Client Power Levels: 25 22 19 16 13 10 dBm
Antenna: Rx[]
Tx[a b c d ofdm all]
External
Gain [Allowed 8, In Use 8] (dBi x 2) 10, In Use

s is the output:

Thank you very much!

[patoberli]

Ok, you probably have configured the wrong country, can you check that?
These are currently the only allowed channels for the selected country and I think because it's set for outdoor:
Allowed Frequencies:
5500(100) 5520(104) 5540(108) 5560(112) 5580(116) 5660(132) 5680( 136) 5700(140)

[jakidaslomoro · Accepted solution]

Yes, it is for Outdoor bridging between two AP. 

Sorry, How do check the Country?

Thanks,

[patoberli]

I haven't worked enough with outdoor models, but at least with the information here, the previous model didn't support the channel you want:
https://www.cisco.com/c/en/us/td/docs/wireless/access_point/channels/lwapp/reference/guide/lw_chp2/1520_chp.html
Actually, when checking the Wiki, only those channels listed before are allowed for outdoor in Europe:
https://en.wikipedia.org/wiki/List_of_WLAN_channels#5.0_GHz_(802.11j)_WLAN