VZW Galaxy S5 can't use Wi-Fi (DNS_PROBE_FINISHED_NO_INTERNET)
I have this same issue also with an S5 on Verizon, but I've narrowed down when it happens. If I enable the hot spot then after I disable it, I will get this error when using the browser (Chrome) and apps that need internet are also unable to function.

Once it starts, nothing seems to allow a wifi internet connection to work. The only thing that seems to get rid of the error is restarting the phone.