ZyXEL Communications U-336E, User Manual

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Diagnostics & Troubleshooting 117
Data Transfer Problems
Problem
You can make a data connection with a remote modem, but
encounter frequent errors during data transfers.
Solutions
1. Your modem and communications software may be configured
for different flow control methods. Be sure your modem and
software are both using hardware (RTS/CTS) flow control or
software (XON/XOFF) flow control.
2. To verify that your modem and communications software are
using the same flow control method, type AT&T8 and press the
Enter key with your modem in the command state. You should
see a smooth “stair-stepping” ASCII test pattern flowing
diagonally across your screen.
Connection Problems
Problem
Your modem disconnects while communicating with a remote
system.
Solutions
1. The remote system may have hung up. Type ATI2 and press
Enter to view the link status report, which will include the
reason for the disconnect. For information on understanding
this report, refer to your ZyXEL Modem Reference Manual.
2. You may have subscribed to Call Waiting and received an
incoming call that interrupted your data connection. See your
telephone directory for information on disabling Call Waiting.