Users Guide

172 | Discovering, Adding, and Managing Devices Dell PowerConnect W AirWave 7.1 | User Guide
Troubleshooting a Newly Discovered Device with Down Status
If the device status on the APs/Devices > List page remains Down after it has been added to a group, the most
likely source of the problem is an error in the SNMP community string being used to manage the device. Perform
the following steps to troubleshoot this scenario.
1. Click the Na
me of the down device in the list of devices on the APs/Devices > List page. This automatically
directs you to the APs/Device > Monitor page for that device, shown in Figure 120.
Figure 120 AP
s/Devices > Monitor Page Illustration for a Down Device
2. Locate the St
atus section. If the Status is Down, there is an onscreen error message indicating the cause of the
problem. Some of the common system messages are as follows in Table 92:
3. If the SNMP Get Failed
message appears, click the APs/Devices > Manage tab to go to the management
page for that device.
4. If visible, click the V
iew device credentials link in the Device Communications area. This displays the
credentials AWMS is using unsuccessfully to communicate with the device. This link can be removed from
AWMS for security reasons by setting a flag in AWMS. Only users with root access to the AMP command line
Table 92 Common System Messages for Down Status
Message Meaning
SNMP Get Failed SNMP community string specified for that device is incorrect or an incorrect SNMP port is
specified. If SNMP is not enabled on the device you will also receive this message. Some factory
default APs, including Cisco IOS devices, do not have SNMP enabled by default.
Telnet Error: command
timed o
ut
Telnet username and password specified for that device is incorrect or an incorrect telnet port is
specified.
ICMP Ping Failed (after
SNMP
Get Failed)
The device is not responding on the network and is likely non-operational.