Cannot add NetBIOS support for IPX/SPX-compatible protocol (due to not enabled).

Cause:


The 'NetBIOS support for IPX/SPX-compatible Protocol' option is visible in the 'Network' dialog box, but it cannot be enabled by selecting the 'Add' radio button.

Solution:


In the 'IPX/SPX-Compatible Protocol' dialog box, on the 'NetBIOS' tabbed page, select the 'I want to enable NetBIOS over IPX/SPX' check box.