Can one help me? One laptop on network is to be using 18.104.22.168:53! But I only ever do put in norton dns in router. And only force dchp (statically mapped dhcp). Also rule for blocking of port 53 other than to norton dns port 53. packet no get trhough, but still blocked and logging. Chrome is installed on machine (of I know what machine is culprit). Turn off the thing that may do, like web service and the predicting. I only want to know, after much search I cannot find. How can this be? What may use other dns than system defined (which be the norton by router). Not ever know that one programs (chrome is in my eye to look at at top) can use indepenent? Insights?