On Apr 24, 3:15 am, Bob Kerns <[email protected]> wrote:
> Things to look at:
>
> 1) What DNS servers are used by the phones, vs the PC's you're
> comparing with?

The same DNS server is used by both phones and PC/Macs as they are all
on the same corporate WiFi network.

>
> 2) Do all the DNS servers on the list work equally well?
>

Again, all clients (PCs/Macs/iTabs/various smarphones and other WiFi
devices) use the same WiFi network.

> 3) Is the wifi connection flaky? This will often show up as DNS
> failures, since DNS lookups are typically the first bit of network
> activity an application does.
>

I cannot speak for that. I have not heard about complains that people
cannot access any network resources over WiFi.

> 4) Are the phones sometimes disconnecting from the WiFi network
> entirely, and going over the phone network instead? This would
> normally work OK, except be slower, but a DNS lookup in the middle of
> a switchover might fail.

I don't thow this. We use regular HttpUrlConnection class for all
network calls on Android. I don't know if there are cases when the
call goes over 3G network.

One thinbg I wan to stress that killing and then restarting the app
ussually clears this state and network calls start working again.

>
> On Apr 23, 8:50 am, ls02 <[email protected]> wrote:
>
>
>
>
>
> > I am not using emulator. I am using real Android phones and many types
> > of them. The problem happens both in debug mode and in real mode with
> > phone not connected to computer.
>
> > On Apr 23, 11:45 am, Kumar Bibek <[email protected]> wrote:
>
> > > This is an intermittent problem. Restarting the emulator would
> > > normally solve this. My best guess would be your abd server is not
> > > functioning properly.
>
> > > Thanks and Regards,
> > > Kumar Bibek
>
> > > On Apr 23, 7:42 pm, Sebastian <[email protected]> wrote:
>
> > > > I have the same problem. Im running an app in the emulator or on my G1
> > > > device and sometimes there is an UnknowHostException thrown. But if i
> > > > check if the host is available (for example over ping) then there is
> > > > no problem.
>
> > > > The app is also working correctly, if I close the emular and/or
> > > > eclipse an restart the app. Then i works well again.
>
> > > > On 23 Apr., 15:08, ls02 <[email protected]> wrote:
>
> > > > > The app is running on different Android devices and all of them
> > > > > exhibit this issue. It has nothing to do with network as I said I can
> > > > > successfully excute the same network call on the same network from PC
> > > > > or Mac.
>
> > > > > On Apr 23, 8:15 am, Kumar Bibek <[email protected]> wrote:
>
> > > > > > Well, if it happens sometimes, then your network has a problem. When
> > > > > > it happens, just to make sure that other apps also are affected by
> > > > > > this, just open some page on the browser. You will be then sure that
> > > > > > this is not affecting your app only, but the emulator or the network
> > > > > > has a problem.
>
> > > > > > Thanks and Regards,
> > > > > > Kumar Bibek
>
> > > > > > On Apr 23, 5:07 pm, ls02 <[email protected]> wrote:
>
> > > > > > > From time to time I get java.net.UnknownHostException when calling
> > > > > > > HttpURLConnection.connect. Obviously the server does exist and I 
> > > > > > > can
> > > > > > > successfully execute the same URL on my PC browser. The problem 
> > > > > > > does
> > > > > > > not happen always, only sometimes. But if it does happen ussually 
> > > > > > > I
> > > > > > > need to restart the app so that I can connect to server again. I
> > > > > > > specify host name not IP address, I cannot use IP address.
>
> > > > > > > --
> > > > > > > You received this message because you are subscribed to the Google
> > > > > > > Groups "Android Developers" group.
> > > > > > > To post to this group, send email to 
> > > > > > > [email protected]
> > > > > > > To unsubscribe from this group, send email to
> > > > > > > [email protected]
> > > > > > > For more options, visit this group 
> > > > > > > athttp://groups.google.com/group/android-developers?hl=en
>
> > > > > > --
> > > > > > You received this message because you are subscribed to the Google
> > > > > > Groups "Android Developers" group.
> > > > > > To post to this group, send email to 
> > > > > > [email protected]
> > > > > > To unsubscribe from this group, send email to
> > > > > > [email protected]
> > > > > > For more options, visit this group 
> > > > > > athttp://groups.google.com/group/android-developers?hl=en
>
> > > > > --
> > > > > You received this message because you are subscribed to the Google
> > > > > Groups "Android Developers" group.
> > > > > To post to this group, send email to 
> > > > > [email protected]
> > > > > To unsubscribe from this group, send email to
> > > > > [email protected]
> > > > > For more options, visit this group 
> > > > > athttp://groups.google.com/group/android-developers?hl=en
>
> > > > --
> > > > You received this message because you are subscribed to the Google
> > > > Groups "Android Developers" group.
> > > > To post to this group, send email to [email protected]
> > > > To unsubscribe from this group, send email to
> > > > [email protected]
> > > > For more options, visit this group 
> > > > athttp://groups.google.com/group/android-developers?hl=en
>
> > > --
> > > You received this message because you are subscribed to the Google
> > > Groups "Android Developers" group.
> > > To post to this group, send email to [email protected]
> > > To unsubscribe from this group, send email to
> > > [email protected]
> > > For more options, visit this group 
> > > athttp://groups.google.com/group/android-developers?hl=en-Hidequoted text 
> > > -
>
> > > - Show quoted text -
>
> > --
> > You received this message because you are subscribed to the Google
> > Groups "Android Developers" group.
> > To post to this group, send email to [email protected]
> > To unsubscribe from this group, send email to
> > [email protected]
> > For more options, visit this group 
> > athttp://groups.google.com/group/android-developers?hl=en
>
> --
> You received this message because you are subscribed to the Google
> Groups "Android Developers" group.
> To post to this group, send email to [email protected]
> To unsubscribe from this group, send email to
> [email protected]
> For more options, visit this group 
> athttp://groups.google.com/group/android-developers?hl=en- Hide quoted text -
>
> - Show quoted text -

-- 
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en

Reply via email to