Yes...I have tried all that is suggested
Dear friends, first, thanks for getting back to me. Yes, all that you have suggested I have tried. I checked the Device Manager and no signs of bad drivers. I tried the "repair" option and that did not work either. At this point I have to think that there is a problem with the NIC or Spyware have corrupted something. The weird thing is that, that same laptop worked earlier in a different node. Now, I connect another laptop at this same node (where I am having problems) and it works fine, so I know that the cat V patch cord and its connection to the router is good.
If you happen to come up with another idea please let me know.
Thanks so much in advance!
jviso