User's Manual

Tsunami MP.11 2454-R, 5054-R, and 5054-R-LR Installation and Management
Chapter 7. Troubleshooting 127
The Unit Responds Slowly
If the unit takes a long time to become available, it could mean that:
No DHCP server is available.
The IP address of the unit is already in use.
Verify that the IP address is assigned only to the unit. Do this by switching off the unit and then pinging the IP
address. If there is a response to the ping, another device in the network is using the same IP address. If
the unit uses a static IP address, switching to DHCP mode could remedy this problem. Also see “Setting the
IP Address”
on page 22.
There is too much network traffic.
Web Interface Does Not Work
If you cannot connect to the unit Web server through the network:
1. Connect a computer to the serial port of the unit and check the HTTP status. The HTTP status can restrict
HTTP access at different interfaces. For more information, see “Serial Port” in the Tsunami MP.11
Reference Manual.
2. Open a command prompt window and enter:
ping <ip address unit> (for example ping 10.0.0.1)
If the unit does not respond, ensure that you have the correct IP address. If the unit responds, the Ethernet
connection is working properly, continue with this procedure.
3. Ensure that you are using one of the following Web browsers:
º Microsoft Internet Explorer version 5.0 or later (Version 6.0 or later recommended)
º Netscape version 6.0 or later
4. Ensure that you are not using a proxy server for the connection with your Web browser.
5. Ensure that
you have not exceeded the maximum number of Web Interface sessions.
Command Line Interface Does Not Work
If you cannot connect to the unit through the network:
1. Connect a computer to the serial port of the unit and check the SNMP table. The SNMP table can restrict
telnet or HTTP access. For more information, see “Serial Port” in the Tsunami MP.11 Reference Manual.
2. Open a command prompt window and enter: ping <ip address unit>
(for example ping 10.0.0.1).
º
If the unit does not respond, ensure that you have the correct IP address.
º
If the unit responds, the Ethernet connection is working properly; continue with this procedure.
3. Ensure that you have not exceeded the maximum number of CLI sessions.
TFTP Server Does Not Work
With TFTP, you can transfer files to and from the unit. Also see “TFTP Server Setup” on page 119. If a TFTP
server is not properly configured and running, you cannot upload and download files. The TFTP server:
Can be situated either local or remote
Must have a valid IP address
Must be set for send and receive without time-out
Must be running only during file upload and download
If the TFTP server does not upload or download files, it could mean:
The TFTP server is not running
The IP address of the TFTP server is invalid