Trouble Shooting

Problem:  CanÕt talk to the modem.
Things to check:  Make sure the modem cable is connected to the port selected in the Modem Preferences.  If the SD light on the modem (Send Data) does not blink  you probably have a cable problem.  Try typing ATH then hit Return; if the modem responds with OK on the next line, then you are talking to the modem.

Problem: You get the message ÒNO DIAL TONEÓ when trying to dial.
Possible causes:  The modem is not connected to a phone line.  Someone else is using the phone.  Your dial tone doesnÕt sound like what your modem is expecting.  Try ATX0 (thatÕs a zero) to tell the modem to not check for a dial tone.

Problem: During an XModem or YModem transfer, it keeps getting errors after 2176 or 17408 bytes.
Possible cause: something in the data path (like a terminal server) is not passing on the XON or XOFF character.  For X/YModem, all characters must be passed through.  See if the terminal server has a binary mode.

Problem: During a ZModem transfer, lots of errors occur after the first few blocks.
Possible cause:  a flow control problem with one of the machines.  Try setting a window limit to see if that helps.  If you are sending, go to the ZModem Options and put 2048 in for the Window Limit.  If you are receiving from a Unix system (using sz), try the command Òsz -w 2048 <filename>Ó.

Problem: Modem hangs up during a download or when receiving lots of text.
Fix: If you are using hardware handshaking, you need to configure your modem to ignore the DTR line.  On most modems, the command is AT&D0 (that's a zero).

MNP connect problems - try AT&Q0 to disable compression and error control

Problem: When connected to a PC based BBS, a box is made up of regular characters instead of line drawing characters.  Fix:  Make sure PC-ANSI emulation is selected and make sure the Strip Hi Bits option is not checked.