This is similar to Q_20766619.htm. My 98SE computer won't connect to the internet even though the wireless link is OK.
However, the IP addresses and settings were all verified by Linksys technical support. They told me this is a "binding" problem in the 98 computer with the TCP/IP protocol to the USB device. (WUSB11 version 2.8)
The problem seems to be when I run winipcfg in the 98 computer (on USB wireless link) it does not show the USB device in the dropdown. So there appears to be a problem for the TCP/IP protocol to be connected to the USB device. All the drop down shows is "PPP" and the installed Ethernet card. It does not show the WUSB device. In Network connections is does show the availability of TCP/IP for the WUSB11 device.