My very 1st step was to install the latest drivers for WNCE2001 available from NetGear.
I'm not sure of what you mean by "conflict between those for the WNCE2001 and the
USR5416": the 2 never co-existed on the system (and removing of the WNCE2001 did
follow by removing of all its drivers and manual clean up of sys.reg). Speaking of being
supported, the problem has started about 3-4 months after the end of XP support,
that's why I assume there were no changes on MS' side but the router from AT&T does
have update capability, which I was not monitoring/loggin; so - I guess - there must've
been the router firmwear upgrade that resulted in this mess. Regards. S. Br.