I WROTE TO YOU THIS BECAUSE I HAVE TRY TO MAKE KUBUNTU USE QUAD 9 DNS OR CLOUDFAIRE OR OTHER DNS BUT NOT WORKING I HAVE TRY WITH REZOLV.CONF WITH CONFIGURE NETWORK CONNECTION UNDER KDE WITH AUTOMATIC (ONLY ADRESS) WITH STUBBY. ALL WORK AFTER REBOOT BUT AFTER SOME MINUTE REVERSE TO ORIGINAL DNS DELIVERED BY MY ISP. PLEASE HELP OR HELP ME TO REPORT THIS BUG TO KDE. ALL THE BEST TO YOU! Sorry for my bad english if any.
Please write to the Kubuntu support channels.