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Troubleshoot dial-up connection error

If you use a dial-up connection to the Internet or your office and you travel frequently, Windows

might occasionally fail to complete the dial-up connection and display "Error 678--There was no

answer."



This is a general error that can appear in varying circumstances. For example, you might

experience this error if you use the wrong driver for your modem, in which case the easy solution is

to install the correct or updated driver.



The error can also be caused by PPTP filtering at the server for VPN connections. Turning off

filtering at the server can cure the problem.



If the problem is intermittent, a simple dialing problem could be the cause. For example, if you're

calling long distance, and the line from which you're dialing doesn't support long distance calls,

you'll receive this error. You might also experience this error if you're dialing with a credit card

and haven't entered all the necessary numbers in the dialing string.



To troubleshoot a dialing problem, make sure you're using a line that includes long distance

service (if needed), and check the dialing string to make sure you're dialing the access number if

needed, along with any other items such as a PIN. Also, turn on the modem's speaker so you can

listen to the dialing string and any voice prompts that might indicate the cause of the problem.

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