I206 V.92 PCI MODEM USER’S M ANUAL
Rev.1.00.2.1.57.75 - 20 -
Section 3 Troubleshooting
Your modem is designed to provide reliable and trouble-free functionality, however, should you experience
any difficulty, the information contained in this section will assist you in determining and resolving the source
of the problem.
Problem: Modem does not respond to AT commands
Possible solutions:
1. Make sure the m odem is not configured with a confl icting COM port and IRQ setting. Make sure the
communication software is configured with the correct COM and IRQ settings (the same COM port
and IRQ as the modem). Your communications software will not be able t o send or receive an y data if it
is not configured to match the COM port and IRQ settings for the modem.
DOS based communication program is not working with this modem neither can you operate the
modem in MS-DOS prompt screen.
2. Make sure the modem is properly initialized using the driver software. The software may improperly
Initialize your m odem because you ha ve selected a n incorrect m odem type. You may also be prompted
to enter an initialization string by the software. Use AT&F as your initialization string.
Problem: Modem dials but does not connect
Possible solutions:
1. Be sure the IRQ setting is identical on the modem and the software.
2. Make sure that the phone line is working properly. A noisy line will prevent proper modem operation.
Problem: Modem makes a connection but no data appears on screen
Possible solutions:
3. Make sure all comm unication par ameter s (baud rate, data, stop, and parit y bits) are pro perly conf igured
and are identical on both sides . Be certain h ardware flow contro l (RTS/CT S - default) is enab led in bot h
the modem and the communication software.
4. Press the ENTER k ey several times. The rem ote system may be waiting to recei ve your data before it
begins.
5. Make sure the correct terminal emulation mode is being used in the software (refer to software manual).
Problem: Modem displays errors while on-line with a remote modem
Possible solutions:
6. Make sure Call Waiting is turned off.
7. Make sure RTS/CTS hardware flow control is enabled (do not use XON/XOFF software flow control
when transferring binary files).
8. Make sure the data speed is not faster than your computer capability. Operating too many applications