QB.11-R Installation and Management
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10
Troubleshooting
This chapter helps you to isolate and solve problems with your unit. In the event this chapter does not provide a solution,
or the solution does not solve your problem, check our support website at
Before you start troubleshooting, it is important that you have checked the details in the product documentation. For
details about RADIUS, TFTP, terminal and telnet programs, and Web browsers, refer to their appropriate documentation.
In some cases, rebooting the unit clears the problem. If nothing else helps, consider a
or a
. The Forced Reload option requires you to download a new image file to the unit.
See the following:
•
•
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Setup and Configuration Issues
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Connectivity Issues
The issues described in this section relate to the connections of the unit.
Unit Does Not Boot
The unit shows no activity (the power LED is off).
1. Ensure that the power supply is properly working and correctly connected.
2. Ensure that all cables are correctly connected.
3. Check the power source.
4. If you are using an Active Ethernet splitter, ensure that the voltage is correct.
Serial Link Does Not Work
The unit cannot be reached through the serial port.
1. Check the cable connection between the unit and the computer.
2. Ensure that the correct COM port is used.
3. Start the terminal program; set the following connection properties (also see “HyperTerminal Connection Properties”
in the
Tsunami QuickBridge.11 Reference Manual
), and then connect.
•
COM port: for example, COM1 or COM2 to which the unit serial port is connected)
•
Bits per second: 9600
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Data bits: 8
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Stop bits: 1
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Flow control: None
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Parity: None
4. Ensure that the unit and the computer use the same serial port configuration parameters.
5. Disconnect and reconnect power to reset the unit. The terminal program displays Power On Self Tests (POST)
messages and displays the following after approximately 90 seconds:
Please enter password
:
