Tsunami QB-8100 Series (100 Mbps/5 Mbps Models) Installation and Management Guide 189
8.2.3 Serial Link Does Not Work
1. Make sure you are using a standard, straight-through, 9-pin serial cable.
2. Double-check the physical network connections.
3. Make sure your PC terminal program (such as HyperTerminal) is active and configured to the following values:
– Com Port: (COM1, COM2, etc. depending on your computer);
– Baud rate: 115200; Data bits: 8; Stop bits: 1; Flow Control: None; Parity: None;
– Line Feeds with Carriage Returns
(In HyperTerminal select: File > Properties > Settings > ASCII Setup > Send Line Ends with Line Feeds)
8.2.4 Cannot Use the Web Interface
1. Open a command prompt window and enter ping <ip address unit> (for example ping 10.0.0.1). If the unit does not
respond, make sure that you have the correct IP address. If the unit responds, the Ethernet connection is working
properly, continue with this procedure.
2. Ensure that you are using Microsoft Internet Explorer 7.0 (or later) or Firefox 3.0 (or later).
3. Ensure that you are not using a proxy server for the connection with your Web browser.
4. Ensure that you have not exceeded the maximum number of Web Interface or CLI sessions.
5. Double-check the physical network connections. Use a well-known unit to ensure the network connection is properly
functioning.
6. Perform network infrastructure troubleshooting (check switches, routers, and so on).
NOTE: At any point of time, if your device is unable to connect to your network, power reset your device by
unplugging and plugging PoE injector.
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