PC always disconnect from wifi frequently, and sometime browser shows "DNS_PROBE_FINISHED_NO_INTERNET". But if you just keep refreshing, the page will finally comes out. I have tried flush DNS, use cmd to reset network, update all sorts of drivers, change various wifi adapters. It just won't work. I currently use a usb connected wifi adapter DWA192, and now I bought a pcie wifi adapter, doesn't know if it works.