ZyXEL Communications Prestige 128IMH, User Manual, Page: 127 / 142

Prestige 128IMH User’s Guide ZyXEL
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Page 17-1
17. Troubleshooting
This chapter contains some problems you may run into when using your Prestige. After each
problem description, we have provided some instructions to help you diagnose and solve the
problem.
17.1. Problems Starting Up the Prestige
17.1.1. None of the LED's are on when you power up the
Prestige
•
Check the power cord and the power supply and make sure it is properly connected to
your Prestige and the power outlet. If the error persists you may have a hardware
problem. In this case, you should contact technical support.
17.1.2. You cannot access the SMT via the console port
•
Check to see if the Prestige is connected to your computer’s serial port.
•
Check to see if the communications program is configured correctly. The
communications software should be configured as follows:
•
VT100 terminal emulation.
•
9600 Baud rate.
•
No parity, 8 Data bits, 1 Stop bit.
17.2. Problems With the ISDN Line
17.2.1. The ISDN initialization failed
This problem occurs when you attempt to save the parameters entered in menu 2, but
receive the message, ‘Save successful, but Failed to initialize ISDN; Press ESC to exit’.
1. Check the error log (in menu 24.3.1), you should see a log entry for the ISDN
initialization failure in the format, ‘ISDN init failed. code<n>...’. Note the code
number, n.