I have a RealTek RTL8029 ethernet card which worked fine, and straight away, under Windows '95. When I upgraded to Windows '98 this was the only thing that stopped working. Whenever Windows starts up it tells me that this device is not working properly. And indeed it's not ! I can't get my other machines to see it on the network, nor can it see anything.
In the Device Manager, Windows reports 'This device is either not working properly, not present, or does not have all the drivers installed'.
I went to http://www.realtek.com.tw/cn/driver/8029-driver.htm
and downloaded the Win98 driver there, but this did not make any change at all ! I still get the same problems and messages.