I never bought into Vista.
See if you can do this, with cable on and wireless off:
Start
Run
Type CMD
In the window that opens, type: ipconfig /renew
If that doesn't work, we can try another way.
Try powering down computer and router and cable modem, plug in the cable, then power everything back up.
If that doesn't help. please post if you have a Windows computer and which version (ie, XP?)
You left out the possibility of not having anything to talk about.
I am open to anyone who wants to email me, but you run that risk.
I have 1.7 of my feet into geezerdom.