push apps failing in Android until you disable IPv6

[Ted Mittelstaedt]

Michael,

Just about all posters to those threads are end users not system admins 
and just about everything they have posted is sheer speculation.  None
have really tested in a lab.  Most seem concentrated on app settings or
are convinced it's an app bug.

They are reporting the issue on 6.x , 5.x and some earlier than that.
Some of what they are reporting is certainly app setting errors.

It would be useful to ask some of the people posting on those threads
if they have tried turning off wifi on the phone for a day or so
and seeing if the push notifications all started working.  That might
get us some useful data.  If push notices work on their cell carriers
data but not their own wifi network then you can reasonably argue that
there is a problem with their wifi network.   That would be the first
step to getting them to do some logical troubleshooting.

Ted

On 5/10/2016 8:10 AM, Michael Oghia wrote:
> Hi everyone,
>
> I am an Android user (but not a developer) and an avid follower of
> AndroidPolice.com. AP has been reporting about a similar issue for some
> time (see: here
> <http://www.androidpolice.com/2016/01/02/some-nexus-owners-are-having-syncing-issues-in-gmail-inbox-and-other-apps/>,
> here
> <http://www.androidpolice.com/2016/02/10/the-gmail-sync-bugs-fix-is-rolling-out-over-the-next-week-no-app-updates-necessary/>,
> and here
> <http://www.androidpolice.com/2016/03/24/gmails-synchronization-bug-is-far-from-resolved-users-still-reporting-issues-despite-promised-fix/>).
> The issue concerns Android push notifications for Gmail, and many Nexus
> users specifically had raised the issue on the Nexus Help Forums
> <https://productforums.google.com/forum/#!topic/nexus/Ayd_1TOemSE> as
> well as filed multiple bug reports on the Android Issue Tracker
> <https://code.google.com/p/android/issues/detail?id=197805>. As you can
> read in the third link, it was supposedly fixed in previous builds but
> the problem has persisted for some. I don't know if the issue raised in
> this thread is the same, but I figured it was prudent to bring it to
> your attention.
>
> Since Android Police were the ones who covered it, I also CC'd
> Artem Russakovskii, the editor-in-chief. The AP staff may be able to
> provide more information in addition to what has been discussed so far.
>
> Best,
> -Michael
> __________________
>
> Michael J. Oghia
> Istanbul, Turkey
> Journalist & editor
> 2015 ISOC IGF Ambassador
> Skype: mikeoghia
> Twitter <https://www.twitter.com/MikeOghia> *|* LinkedIn
> <https://www.linkedin.com/in/mikeoghia>
>
> On Tue, May 10, 2016 at 4:48 PM, Mikael Abrahamsson <swmike at swm.pp.se
> <mailto:swmike at swm.pp.se>> wrote:
>
>     On Tue, 10 May 2016, Erik Kline wrote:
>
>         It's really not clear to me what that version of rdisc6 would
>         print if
>         it encounters options about which it did not know anything.  A
>         pcap of
>         just an RA would be best.  The adb commands I pasted should also
>         suffice to show what the device thinks it has for DNS, routes,
>         everything.
>
>
>     The version of rdisc6 included in Ubuntu 14.04 displays recursive
>     DNS server.
>
>     This is also seen in "tcpdump -vvv -n -i eth0 icmp6" and I see it as:
>
>     rdnss option (25), length 24 (3):
>
>
>     --
>     Mikael Abrahamsson    email: swmike at swm.pp.se <mailto:swmike at swm.pp.se>
>
>