Slow WiFi with Android Marshmallow & IPv6?

[Brzozowski, John Jason]

My customers saw this issue at one point.  We had issues with DNS over
IPv6.  Bad DNS and/or network configurations.  Once these were fixed, the
problems cleared up.

On Sunday, April 24, 2016, Erik Kline <ek at google.com> wrote:

> On 24 April 2016 at 19:53, Jeroen Massar <jeroen at massar.ch <javascript:;>>
> wrote:
> > On 2016-04-24 11:51, Eric Vyncke (evyncke) wrote:
> >> 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.
> >
> > Is it a DNS issue maybe?
> >
> > https://www.sixxs.net/faq/dns/?faq=ipv6slowconnect
> >
> > As that has been the general cause of "Disable IPv6!!!!!" around the
> > world for many years already.
> >
> > Of course, without more details, little one really can say. Bug number
> > maybe?
> >
> > Greets,
> >  Jeroen
> >
>
> Yeah, a link to something that eventually leads to a bug report would be
> good.
>
> Also if anybody has adb installed they can just try "adb shell dumpsys
> connectivity --diag" and see what the over-simplified diagnostic
> output shows.
>
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