One of the first Belgian ISP to deploy IPv6 (VOO) is now recommending to its Android Marshmallow (6.0.1) users to deactivate IPv6 on their residential WiFi CPE... :-(
It appears that the issue is about IPv6 web sites/apps being really slower when using IPv6. AFAIK, it is only related to this specific Android version. And Google seems to search for a solution. Does any other ISP have the same issue? Thanks in advance -éric