3COM should check their spelling before releasing thier drivers! When I downloaded these drivers, it woiuld get coming up "please locate the file '98wdmdfa.cat'" of course there was no such file. BUT!!! I found this other file in the download that read 'wdmdva.cat', after renaming it to 'wdmdfa.cat' it works perfect.
Tested on 10 modems and 100% of them work.