Avast Internet Security - Real Site protection on the device overrules the OpenDNS FamilyShield on the Internet Router.
This problem is now know for some months .
(see: https://support.opendns.com/hc/en-us/articles/115008038687-Avast-Security-Suite-and-OpenDNS-problems- )
They both use OpenDNS, the workaround is still to disable Avast RealSite.
Will there come a fix for this ?