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Operating System

Common Macintosh Errors / Solutions

Error 633: The port is already in use or is not configured for Remote Access dial out.

There may be several possible causes for this error. The steps below should help you pinpoint the cause of the problem and offer a solution.

Possible Solutions
A. Have you checked your modem and phone cord?
B. Have you completely restarted the computer?
C. It is possible that another program has accessed your modem and has not released it.



A. Have you checked your modem and phone cord?

A bad modem or unplugged phone cord might be the culprit. Make sure all of your phone line connections going in and out of the modem are tight and secure, then try to connect to Juno again.

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B. Have you completely restarted the computer?

Try shutting down and unplugging the computer for 1 minute. Restart the computer and try to connect to Juno again.

Note: If you have an external modem with a separate power cord unplug the modem once the computer is shut down. After a minute, plug the modem back in then turn on the modem and restart the computer before attempting to dial again.

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C. It is possible that another program has accessed your modem and has not released it.

It is possible that a program running in the background may be using your modem (such as fax and voicemail software, or another ISP's software), preventing it from connecting to the Internet. To work around this problem, disable all programs running in the background by following these steps:

  1. Check and see what programs are running by clicking the application menu in the upper-right corner of the Finder.
  2. Select a program on the list (preferably a fax / modem program) to switch to that application, then quit it by going to the File menu and selecting Quit.
  3. Try your Juno connection again. If this does not resolve the problem, close Juno. Repeat Steps 1 and 2, quitting one program at a time. Each time you quit a program, try your Juno connection again. When you stop receiving the error, the last program you quit is likely the one creating the conflict.
  4. Once you've found the conflicting program, close it before you logon to Juno. You can contact the manufacturer to see if they have more information about a solution so you can use both Juno and this program at the same time.

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