The message I receive from time to time when surfing: the wireless network has been compromised and will be shut down one minute. I can let it reconnect faster if I disable the wifi completely and re-enable it. But this is of course quite annoying. I've had this problem since the release of Mavericks (or even the version before that I don't know). I looked it up back then and a solution was that I should change the network name. I did and it appears to have been less but recently (and I think (not sure) this coincides with the upgrade to El Capitan). Is there any definite solution to this? How is this caused?