Perhaps my posting was unclear. DNS is working fine. I have no problem web browsing. But if I try to use thunderbird, filezilla, pan or synaptic it ACTS as if there is no resolution to the DNS query. In fact there is, as I can plainly see it in wireshark. but it seems to not get back to the app. If DNS were not working I could not use chromium or firefox which, in fact, I can.