I have an Asus Vivotab RT. I'm starting to have wifi issues, where it just disconnects for no reason. But it shows that it's connected.

So I would turn the wifi off, and then back on.
I spoke to Asus, they said I would have to send it in to be repaired.
It would be around $200 to get fixed they said, because it's out of warranty.

It's only a driver issue, it does not need to be repaired.

Does anyone knows what I can do to keep it from disconnecting? Or where I can download a driver from?

Their support sucks. Something that should take 2 minutes to get an answer, that take like a half hour.