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"Error 721," "Error 678," "Error 691," or "Error 777" error message when you try to establish a dial-up connection after you upgrade to Windows XPArticle ID: 318009 - View products that this article applies to. This article was previously published under Q318009 SYMPTOMS When you try to establish a dial-up connection after you
upgrade your computer to Microsoft Windows XP from Microsoft Windows 98, from
Microsoft Windows 98 Second Edition, or from Microsoft Windows Millennium
Edition (Me), you may receive an error message that is similar to one of the
following: Error 721: The remote computer is not
responding. Error 678: The remote computer
failed to respond. Error 691: Access was denied
because the user name and/or password was invalid on the
domain. Error 777: The connection attempt failed
because the modem or other connecting device on the remote computer is out of
order. CAUSE This issue may occur if the modem driver is not compatible
with Windows XP. This issue has been reported to occur with Lucent Win modems
that are included with the following Hewlett-Packard (HP) computers: HP Pavilion 6736 HP Pavilion 6745c HP Pavilion 7400 HP Pavilion 7800 HP Pavilion 7845 HP Pavilion 7850 HP Pavilion 7855 HP Pavilion 7940 HP Pavilion 8655 HP Pavilion 8756c HP Pavilion XT846 HP Pavilion XT856 HP Pavilion XT923 RESOLUTION To resolve this issue, contact the hardware manufacturer to
inquire about how to obtain and install the latest Windows XP-compatible driver
for the modem. For more information about how to contact HP, visit the
following HP Web site: http://welcome.hp.com/country/us/en/support.html Microsoft
provides third-party contact information to help you find technical support.
This contact information may change without notice. Microsoft does not
guarantee the accuracy of this third-party contact information.
Note In certain situations, you may also have to update the BIOS on
the computer. For more information about how to obtain the latest BIOS update
for your HP computer, visit the following HP Web site:
(http://welcome.hp.com/country/us/en/support.html)
http://welcome.hp.com/country/us/en/support.html
(http://welcome.hp.com/country/us/en/support.html)
MORE INFORMATION For additional information about how to
troubleshoot Error 691 error messages, click the following article number to
view the article in the Microsoft Knowledge Base: 314455 For additional information about how
to troubleshoot modem issues in Windows XP, click the following article number
to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/314455/
)
"Error 691" error message when you try to connect to your ISP
308022
(http://support.microsoft.com/kb/308022/
)
Resources for troubleshooting modem problems in Windows XP
Click here to view a list of other Windows XP modem-related articles The third-party products that this
article discusses are manufactured by companies that are independent of
Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the
performance or reliability of these products.
(http://support.microsoft.com/search/default.aspx?catalog=lcid%3d1033&spid=1173&query=modem&adv=&mode=s&cat=false)
PropertiesArticle ID: 318009 - Last Review: June 13, 2007 - Revision: 4.4
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