Meru Technical Note - Power Settings change when upgrading to 3.3-146 may cause problems with APs Configuration.

[nsamuel]

Description

Upgrading from 3.2.5-71 to 3.3-146 Power Setting Change May Cause Radio Config Loss.

Scope

KB Article Type: Configuration

RELATED PRODUCTS:  N/A

RELATED SOFTWARE VERSIONS: 3.3-146

KEYWORDS: Power settings,
Solution

This problem is caused by the fact the default AP power settings of the AP radio for the US country code have been changed.

It has been observed that when upgrading from 3.1.X, 3.2.X, to version 3.3-146 you may lose your radio configuration settings.

This problem is caused by the fact the default AP power settings of the AP radio for the US country code have changed from 21,21,21 to new default values of 20,20,20. If the power settings on the AP radio interface are the old default values of 21,21,21 at upgrade time, that AP radio interface’s non-default settings will be changed from their previous value to default settings (e.g. if the AP radio was configured to use channel 11, it will now use channel 6).

It is recommended all your customers planning to upgrade to version 3.3-146 first change the default values of the radio prior to the upgrade.

To lower the power lever prior to the upgrade please use the following procedures

Reconfigure via CLI

33146-1100# configure terminal

33146-1100(config)# interface Dot11Radio 1 1

33146-1100(config-if-802)# power local 20,20,20

33146-1100(config-if-802)# exit

33146-1100(config)# exit

33146-1100#

Reconfigure via GUI

From the GUI select the one AP and double click on Bulk Update.

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Once in the Bulk Update selection select/check Transmit Power enter the value 20,20,20 in the config box and click ok. Depending on how many AP you have this may take some time to complete

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Under the WLan setting select Wireless Interfaces select the AP associated with A/B radio and View Details you will get the screen displayed above note the Transmit Power setting change.

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