I have an AMD Athlon dual core PC running WinXP SP3, Avast anti-virus. Suddenly, the LAN connection dropped while online. Thinking it might be the Netgear router, I plugged directly from the cable modem to the NIC card, and it connects but the yellow triangle with exclamation point show saying limited or no connectivity.

I ran a quick scan with Malwarebytes having updated it a couple of days ago and it found 4 infections which were removed. After restarting, the same issue prevails. Am running a full scan with MB now but so far nothing has shown up.

Any ideas? Am sending this from my laptop which fortunately still functions.

Thanks.