I've had the same issue since I first got it. I've been looking for a fix. I am able to connect but get disconnected continuously. I was able to temporarily fixing it by deleting and re-adding the router, but that didn't last long. Any help appreciated.
you may want to check your modem bandwidth, newer modems can run at 5Ghz and older
ones at 2.5Ghz, the N7 can only connect at 2.5Ghz, if your modem/router is set and 5Ghz
your N7 won't connect to the internet, Google saving money,it is only $200 after all
its Ghz or Mhz, I can't remember.
