Troubleshooting A Newly Discovered Device With Down Status - Dell PowerConnect W-Airwave User Manual

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 Name 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 APs/Devices > Monitor Page Illustration for a Down Device
2. Locate the Status 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 Common System Messages for Down Status
Message
SNMP Get Failed
Telnet Error: command
timed out
ICMP Ping Failed (after
SNMP Get Failed)
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 View 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
172 | Discovering, Adding, and Managing Devices
Meaning
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 username and password specified for that device is incorrect or an incorrect telnet port is
specified.
The device is not responding on the network and is likely non-operational.
Figure 120.
Table 92:
Dell PowerConnect W AirWave 7.1 | User Guide