A few days ago, I installed vista service pack 1 for an update. I turned on my computer the next day, to find out my zonealarm wasn't up-to-date. So it wasn't compatiable with the service pack update, and wouldn't let me online. I ended up googling it on my main computer, finding out what to do but messing up and accidently deleting my zonealarm. I didn't care, so I installed AVG but not long after this my internets been randomly disconnecting. It'll disconnect for about 30 seconds then come back on.
I have a Gateway Laptop, with a Netgear router. I've had this laptop for about six months, and this has never happened before.