Cannot connect to Cisco Dial-up Server with some client IP address ranges in Windows XP

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If a Cisco router serves as a remote access server and if you use a Windows XP-based client to dial this remote access server, you may receive error 718 (a time-out error) if a 145.x.x.x or 147.x.x.x static IP address pool is specified on the RAS server. But if an IP address pool is specified that does not include 145 or 147, the RAS client can successfully dial the RAS server.
The PPP stack does not support extended masking for data bytes. Therefore, a setting that is required by the Cisco server cannot be implemented for the connection, and the connection times out.

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version        Size    File name     Platform  SP   ---------------------------------------------------------------------   02-Oct-2002  01:45  5.1.2600.101   13,824  Asyncmac.sys  x86       0   01-Oct-2002  18:47  5.1.2600.1129  13,824  Asyncmac.sys  x86       1   02-Oct-2002  01:45  5.1.2600.101   42,240  Asyncmac.sys  ia64      0   01-Oct-2002  18:47  5.1.2600.1128  42,240  Asyncmac.sys  ia64      1

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Windows XP Service Pack 2.
More information
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Article ID: 329798 - Last Review: 01/11/2015 22:11:48 - Revision: 4.0

Microsoft Windows XP Home Edition, Microsoft Windows XP Professional

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