Technical data

Enterprise Mesh Troubleshooting
© 2012 Meru Networks, Inc. Wireless Backbones With Enterprise Mesh 269
Troubleshooting via Console-over-Wireless
Console-over-Wireless (CoW) is a way of accessing a wireless AP for troubleshooting
purposes. Considering that an AP may be deployed on rooftops, poles, or other inac-
cessible places, it can not be connected to a serial cable (RS-232). CoW enables
access to the AP wirelessly with the help of a special client utility and the procedures
described below.
There can be times when a AP is not able to connect to the controller and hence the
Enterprise Mesh parameters need to be checked or configured on the AP itself. The
Enterprise Mesh parameters are channel, role, and parent-MAC.
The following procedures may be used as a last resort to rescue an offline, physically
unreachable all-wireless AP.
1. Ensure that you have the following:
— Wireless adapters supported in the following
http://www.winpcap.org/misc/faq.htm#Q-16
— WinPcap 4.02 installed
— wcoe.exe on the computer (downloaded from Meru Networks FTP with 3.5
release or later)
— default windows wireless turned on the interface
Wireless APs were correct but are no
longer pointing to their designated
parent AP.
If, for any reason, an AP stops functioning, the
rest of the downstream chain of wireless APs will
lose connection. If this happens, restore the
configured setup by first restoring the gateway
AP to operation, then turning off the wireless
APs. Turn the APs back on in order and operation.
Only two APs are showing up on the
network but I configured more than
two
Check your Enterprise Mesh licensing. Two APs
are license-free, after the third, a license is
needed.
APs are picking up a configuration
that I did not create
Your APs may have inherited an old configuration
from a previously-used AP. Try resetting all APs to
factory defaults with the CLI command reload ap
id default (for one AP) or reload all default.
Then, follow the setup directions
Installing and
Configuring an Enterprise Mesh System
.
APs are rebooting A possibility could be bad channel conditions.
Check the backhaul channel condition using a
wireless sniffer.
No APs are online Did you upgrade from 3.1.5? When upgrading
from 3.1.5, you could lose your license key.
Workaround: Reapply your license.
Problem Possible Cause & Solution