Error Message: "Modem Initialization String Failed" when Launching Laplink V/DOS or Dialing the Modem

Author Scott M on February 22, 2012 | Print | Bookmark
Last updated on April 6, 2012

Document relates to: Laplink for DOS

 

SUMMARY

What does "Modem Initialization String Failed" mean? How do I stop this message?

 

CAUSE

This message indicates that an IRQ (Interrupt ReQuest) conflict exists between COM1 and COM3 or COM2 and COM4, or there is an unsupported command in the modem's initialization string.

 

SOLUTION

NOTE: These steps assume that the mouse works in Laplink V/DOS. If it does not, use ALT and the highlighted letter. TAB and the Arrow keys will move the cursor around the dialogs.

To check for an IRQ conflict, disable the opposing COM port that is enabled for Laplink V. For example, if the modem is set to COM3, disable COM1, or if the modem is set for COM4 disable COM2.

Here are the steps to do this:

  1. From Laplink's Options menu, click Port/Modem Setup.

  2. Highlight the port you wish to disable (the port should show as Enabled), and press Enter.

  3. Type E to remove the X from Enable Port.

  4. Click OK.

  5. Highlight the modem port, and press Enter.

  6. Type to go to Serial Port Settings.

  7. Verify that the modem serial port settings are set to the modem's actual baud rate instead of Automatic.
  8. NOTE: If the baud rate is not listed, click 38400.

  9. Click OK, and then Done.

  10. Attempt to dial the modem.


If the message is still displayed when dialing the modem, check to see if there is a command in the initialization string that is causing the failure. To do this, send a BLANK initialization string to the modem. A blank initialization string in LapLink forces the modem to use its own internal default settings. 

Here are the steps to do this:

  1. From Laplink's Options menu, click Port/Modem Setup.

  2. Highlight the modem port, and press Enter.

  3. Click User Customized.

  4. Confirm that the Initialization string field is empty.

  5. Confirm that Tone Dial is selected unless the phone line uses a pulse dial.

  6. Click OK and then Done.

  7. Attempt to dial the modem.

  8. If the modem dials and connects, leave the string blank.

 

This Article can be found by searching for:

Keywords: Connections: Modem, Modem: Errors, Configuration: COM ports, Error Messages: Connections

Platforms: DOS

Article#: 710

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Category: Laplink V for DOS

Last updated on April 6, 2012 with 3628 views


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