D-Link DES-3010FA/GA User Guide
Problem Management
Problem management includes isolating problems, quantifying the problems, and then applying the solution. When a problem is detected, the exact nature of the problem must be determined. This includes how the problem is detected, and what are the possible causes of the problem. With the problem known, the effect of the problem is recorded with all known results from the problem. Once the problem is quantified, the solution is applied. Solutions are found either in this chapter, or through customer support. If no solution is found in this chapter, contact Cus- tomer Support.
Troubleshooting Solutions
Listed below are some possible troubleshooting problems and solutions. These error messages include:
•Cannot connect to management using
•Cannot connect to switch management using Telnet, HTTP, SNMP, etc.
•
•No connection is established and the port LED is on
•Device is in a reboot loop
•No connection and the port LED is off
•Add and Edit pages do not open.
•Lost password.
Problems | Possible Cause | Solution |
|
|
|
Cannot connect to man- |
| Be sure the terminal emulator program is set to VT- |
agement using |
| 100 compatible, 9600 baud rate, no parity, 8 data bits |
serial connection |
| and one stop bit |
|
| Use the included cable, or be sure that the |
|
| complies with a standard |
Cannot connect to |
| Be sure the switch has a valid IP address, subnet |
switch management |
| mask and default gateway configured |
using Telnet, HTTP, |
| Check that your cable is properly connected with a |
SNMP, etc. |
| valid link light, and that the port has not been dis- |
|
| abled |
|
| Ensure that your management station is plugged into |
|
| the appropriate VLAN to manage the device |
|
| If you cannot connect using Telnet or the web, the |
|
| maximum number of connections may already be |
|
| open. Please try again at a later time. |
|
|
|
No response from the | Faulty serial cable | Replace the serial cable |
terminal emulation soft- | Incorrect serial cable | Replace serial cable for a |
ware |
| cable |
| Software settings | Reconfigure the emulation software connection set- |
|
| tings. |
Response from the ter- | Faulty serial cable | Replace the serial cable |
minal emulations soft- | Software settings | Reconfigure the emulation software connection set- |
ware is not readable |
| tings. |
|
|
|
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