The Three Most Common Dial-up Errors

by hmiller 28. February 2010 08:16

If you have dial-up Internet, you have probably encountered a few errors when you try to connect to the Internet. Sometimes the errors have some unrecognizable jargon and deciphering what to do next is difficult. Here are a few things to try:
*Redial—for one reason or another, connection occasionally fail. The error message may or may not accurately reflect the true problem. Sometimes, all it needs is for you to try again. If you get the same message twice in a row, then you know the problem is legitimate and can’t be resolved as simply.
*Restart—sometimes your computer needs a refresher when it fails or malfunctions. Many times, especially with a simple problems, restarting your computer will resolve it. If you get a repeated error message, especially after you restart, you probably need to do a little technical support.

Here are the three of the most common dial-up errors you are most likely to encounter, and what probably needs to be done to resolve it.

*680—There is no dial tone. Several things can cause an error 680:
 1. You forgot to plug your phone cord from the jack to the back of the computer.
2.  There is something wrong with the phone line. Check on the home phone if you hear a dial tone.
3.  The phone cord your computer is using is damaged (sometimes if it’s too long, like over 25 feet, it can cause problems connecting).
4. The phone cord is plugged into the wrong port in the back of the computer.
5. Your modem is not functioning.
Try a few combinations, like different cords, jacks, ports, etc. This should eventually narrow down what is causing the problem.

*691--Invalid username and/or password. Several scenarios can cause this error:
1. The username and/or was typed incorrectly. Try clearing out both fields completely and retyping them in.
2.  The access number has an outage or malfunction. If you have more than one, try another. Or call your ISP to see if there is an issue on their end.
3. Your account has been terminated or suspended. Have you paid your ISP bill recently? If not, you might need to make a payment before you can connect again.

*678--Your modem cannot establish a connection/there is no answer. Here are the most common reasons for this error:
1. Your access number is not entered correctly. If you have invalid characters (like letters, dashes, spaces, or symbols), an unneeded (or missing) area code, extra or missing numbers, etc., you won’t connect.
2. Your access number is not working. Sometimes the access number is too far away, not working properly, etc. Try another access number if you can to see if you get the same error.
3. Your connection is corrupted. Delete and recreate (or reinstall) your dial-up connection and try again. 4. There is too much static on the phone line you are using. If there is too much line noise, like buzzing, humming, and static, your modem cannot communicate over your phone line. Call your phone company if you can hear static.

In any of these scenarios, there are some technical adjustments that can be made to improve the quality of your connection, so call your ISP for assistance if you cannot resolve the error on your own. Check out for more information on tech supporting dial-up errors.


Written by Hannah Miller, Online Marketing Representative and Customer Service, is a nationwide Internet services provider that is all-American owned and operated. Call today, 1-800-336-3318 or sign up online at! Check out my blog for more articles!

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About the author

Hannah Miller is an Online Marketing Representative for - America's best provider for Dial-Up Internet Service since 1997.

Hannah has been a Customer Service and Tech Support agent for since 2007, which has supplemented her knowledge of dial-up, computers, and the Internet. The entries that are posted in this blog are professional articles relating to our industry. Email your questions, suggestions, and other comments to

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