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Yes, from User Accounts, I modified the server's credentials for that client, using the same user name and password as the other clients are using to access that client.
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Yes, from User Accounts, I modified the server's credentials for that client, using the same user name and password as the other clients are using to access that client.

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Rebooting cured this. &nbsp;Sorry I didn't try that before posting, but your comment about &quot;updating&quot; credentials caused me to think it might help.
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Rebooting cured this.  Sorry I didn't try that before posting, but your comment about "updating" credentials caused me to think it might help.

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Glad I could help, even if it my comment wasn't the actual fix.
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Glad I could help, even if it my comment wasn't the actual fix.

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After changing the administrative password on a network client (running Windows XP SP-3), the server (running Windows 7 Professional SP-1) cannot access that client. &nbsp;The server can ping the client, but cannot access files or folders, or map a network share. &nbsp;Other clients on the network can still access this client, after updating their credentials. &nbsp;The client which can't be accessed from the server is sharing its drives with Everyone, granting full access.
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After changing the administrative password on a network client (running Windows XP SP-3), the server (running Windows 7 Professional SP-1) cannot access that client.  The server can ping the client, but cannot access files or folders, or map a network share.  Other clients on the network can still access this client, after updating their credentials.  The client which can't be accessed from the server is sharing its drives with Everyone, granting full access.

Cannot access network client from server

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.

Windows Networking

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.