Terminal Services in W2K Kernal error

In Windows 98 when connecting to my terminal server over the internet, it comes up with the illegal operation: KERNEL32.DLL at 018f:bff7a125. Only after trying it a few times will it log in, usually after 4 or 5. Is this a known bug when connecting using 98 to a W2K TS? Or is there a setting wrong on the server, as I have other TS systems going without any problems