To set a global WWW or FTP service connection time-out value
1. In IIS Manager, expand the local computer, right-click the Web Sites or FTP Sites folder, and click Properties.
2. On the Web Site or FTP Site tab, in the Connection timeout box, type the maximum number of seconds that IIS should maintain an idle connection before resetting the connection.
3. For the WWW service, verify that the Enable HTTP Keep-Alives box is selected.
4. Click Apply, and then click OK.
To set a connection time-out value for a specific Web or FTP site
1. In IIS Manager, expand the local computer, expand the Web Sites or FTP Sites folder, right-click a Web or FTP site, and click Properties.
2. On the Web Site or FTP Site tab, in the Connection timeout box, type the maximum number of seconds that IIS should maintain an idle connection before resetting the connection.
3. For the WWW service, verify that the Enable HTTP Keep-Alives box is selected.
4. Click Apply, and then click OK.