What do the various error codes mean?

Published 04/04/2005 16:45   |    Updated 18/02/2008 14:00
What do the various error codes mean?
  1. Error 404: Page not found

    This is probably the most common error message you will encounter on the Web. But don't worry - there's nothing wrong with your computer or your software.

    You get the 404 error for the following reasons:

    • The web address has been typed incorrectly.
    • The webpage may have moved to a different place on the website.
    • The webpage no longer exists.
    • Last but not least - the person who edited the webpage may have made a mistake when typing in the web address of the link.

    Please try one of the following options:

    • Check the webpage address and re-enter.
    • Try accessing the homepage rather than a webpage within the site, ie, instead of www.this-site.com/this-folder/this-page.htm try www.this-site.com and then try to navigate down to the page you want.
    • If the webpage has moved or has been deleted, try using the search engine at the very top of this page to find it.
  2. Error 630: Modem not found

    If the modem itself isn't defective, you probably need to check your modem cable or reinstall your modem drivers.

  3. Error 797

    As above for Windows XP users.

  4. Error 676: The line is busy

    The connection to BT Ireland or IOL is engaged: retry later or if the problem persists please contact us directly.

  5. Error 678: No answer

    This is generally down to a problem with the modem or alternatively you could be dialling the wrong number.

  6. Error 691: Authentication failure

    This error indicates that your connection to BT Ireland or IOL failed because either your username or password was incorrect.

    Try re-entering the username in lower case.

    Also remember that passwords are case-sensitive! So 'ThIsPaSS' is different to 'Thispass'. Make sure you haven't accidentally pressed the Caps Lock key.

  7. Error 734

    As above for Windows XP users.

  8. Error 745: An essential file is missing

    Dial-Up Networking should be reinstalled and a new connection setting created. For help doing this you will need to call the manufacturer of your PC as we are unable to offer support on that.

  9. Error: An error occurred when establishing DUN to BT Ireland or IOL

    This usually occurs when you are attempting to send or receive mail with Outlook Express and indicates a problem connecting to BT Ireland or IOL.

    • Open Outlook Express.
    • Click on the Tools menu.
    • Click the Accounts menu item.
    • Click on the Mail tab.
    • Double-click on pop.officelink.esat.net or gpo.iol.ie.
    • Click on the Connection tab.
    • Make sure there is no tick in the box alongside 'Always connect to this account using'.
    • Click OK.
    • Click on the News tab.
    • If the a news server exists then:
      • Double-click on news.iol.ie.
      • Make sure there is no tick in the box alongside 'Always connect to this account using'.
      • Click on OK.
      • Click Close.
  10. Error: Modem in use by another application or Port already open

    Both these error messages mean the same thing: another program is hogging the serial port or modem.

    Often these types of programs will load up automatically - check to see what programs are currently running. You can spot them because they place an icon in the tray next to the clock in the bottom right of the screen or in the taskbar. To close any unnecessary programs simply right-click on its icon and select Close or Exit from the options that appear. When you have closed all the programs you don't need, try connecting to BT Ireland or IOL again. If you are still getting the same error message, you will need to contact your supplier or read your PC's manual for further help on disabling communication software.

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