Cisco AP power level 1 in UNII-1 and Level 4 in UNII-3

I was testing two Cisco 3602e access points. In The RF profile I had set min and max power to be 14dBm. Therefore I would expect the RRM will set the same power level in both APs

But when I checked the two APs one has power level 4 and the other has power level 1

Then I checked the output of command "show advanced 802.11a txpower". The output below explains why the two APs show two different power level. Because one is using an UNII-1 channel and the other is using a UNI-3 channel.

Set time zone in Cisco ISE 2.3

Cisco ISE has a CLI interface very similar to Cisco IOS.

1) SSH in to ISE 

2) show time zones 


ise-1/admin# show timezones

Australia/NSW
Australia/North
Australia/Perth
Australia/Queensland
Australia/South
Australia/Sydney

3) Set the time zone

ise-1/admin(config)# clock timezone Australia/Sydney

% On ise distributed deployments, it is recommended all nodes be

% configured with the same time zone.

Continue with time zone change?  Y/N [N]: y

System timezone was modified. You must restart ISE for change to take effect.

Do you want to restart ISE now? (yes/no) no

ise-1/admin(config)#

ise-1/admin(config)# end

ise-1/admin#

ise-1/admin# show clock

Tue Oct 24 20:47:09 AEDT 2017

PKI-3-CERTIFICATE_INVALID_NOT_YET_VALID - Cisco vWLC

I installed a fresh copy of Cisco vWLC version  AIR_CTVM-K9_8_2_151_0. But my AP3502i refused to connect to this controller and returns the error "PKI-3-CERTIFICATE_INVALID_NOT_YET_VALID" in the console output.

Then I checked the WLC self signed certificate (SSC) and it is not valid yet !!!

I thought I could regenerate the certificate with correct time but could find any CLI command or GUI option to do that.

Then I thought, lets change the time so that the certificate will be valid.

After few minutes that changed the AP's time as well and the AP connected to the controller !!!