Unable to download app on the dev phone from the android market...

by havexz » Mon, 13 Apr 2009 11:02:31 GMT


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 I am unable to download my app from the android market. Is it because
of some settings I have to do while publishing? What is the reason
that dev phone is unable to download the app? The same app is
downloadable on other normal android phones. Please help this is
really bugging me.....
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Other Threads

1. Suspicious TCP RST packets while device is sleeping.

Hey Bob,

Thanks a lot for the response :)

After a few more hours tonight working on the problem, I've got a bit more
information to present.

at the network level (tmobile I'd imagine).  The connection is definitely
NAT'd, the client sees itself as one outgoing IP (14.130.xxx.xxx) and port,
and the server sees an incoming connection from a different IP/port
(208.54.xxx.xxx).

My best guess is that tmobile is killing the connections at the NAT level
after not seeing traffic running on it for a certain period of time (5
minutes in this case).  This wouldn't be a problem, as you said, a reconnect
works just fine.  And in fact, the higher-level long-lived session control
is already in place, and the client reconnects/etc properly when sensing a
disconnect.

The problem comes in based on _how_ the NAT is killing the connection.
 Keeping a wake-lock on device to prevent sleeping, and watching TCPdump on
both sides shows the server receiving a RST packet, but no RST packet is
sent to the client.  The client sits there, assuming the connection is still
active, indefinitely.  The second it tries to do something (user-prompted,
or via a "ping" timer), it sends a PSH packet to the server, and the server
responds with a RST (it closed the connection when it got the RST from the
NAT).

Obviously if the NAT were to send RSTs both directions, this wouldn't be a
problem, the client would notice the disconnect, and reconnect.  But from
everything I can tell, it notifies the server, and leaves the client
completely unaware that the connection has been dropped...

I understand that the NAT needs to clear out old/stale connections, but
sending a RST uni-directionally seems a bit incorrect to me...

Any ideas?

- Dan






> 

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