Android :: Server Socket Ports Connection Timeout Error

Jul 9, 2010

I am playing around a bit with peer-to-peer communication with android devices.I have written a basic program that creates a listening ServerSocket on each phone using the application. Using the application you can also connect to other devices that is listening, by connecting to the remote ServerSocket. Nothing strange about that.My problem is that it seems that the listening port is not open for connection on different devices. I can connect to my HTC Desire, works like a charm. But connecting to a HTC Hero I get timeout, same if I try to connect to the emulator. But connection FROM the emulator to the Desire and FROM the Hero to the Desire works like a charm. Whats up with this? No security apps is installed and both devices(and the emulator) is running 2.1.

ADVERTISEMENT

Android :: Server Socket 3G Connection

Mar 3, 2010

I have been trying to setup a Droid to Droid 3G connection. I can confirm that all works great in wifi mode. The Droid can make connection requests (Http, Telnet, raw sockets) in 3G, but I cannot get the Droid to accept a socket connection in 3G mode. I was told by Verizon that a special license may be needed to accept socket connection requests and they would send me some information. So far none has been received. If anyone knows how to program the Droid to accept socket connection requests over 3G, please respond. Also if anyone knows why this not allowed please respond.

View 10 Replies View Related

Android :: Server Socket Error / How To Fix?

Jun 25, 2010

I'm now facing a very strange server socket problem, I have a server that will listen on a TCP port, I use the following code to do this work. public class RequestListenerThread extends Thread.

View 4 Replies View Related

Android :: Server Socket Error

May 19, 2010

I am attempting to open a ServerSocket on my Android device to receive network connections, but do not seem to recieve network traffic from them. Running netstat -an on the device shows it is listening on 0.0.0.0:1234, but my connections to telnet to <public ip of Android device>:1234 do not appear (and do not receive a SYN,ACK in response). How can I write an application which will open an accessible server socket? Is this possible? I am thinking that either the ISP (mobile carrier) may be blocking this incoming connection attempts or the Android OS is blocking them (host firewall)?

View 4 Replies View Related

Android :: Connection Between Server/socket When It Moves From EDGE To WIFI And Vice Versa

Dec 16, 2009

Does Android keep the connection between the server/socket when it moves from EDGE to WIFI and vice versa?

View 1 Replies View Related

2.1 Update :: Error Connection Server In MediaScape

Dec 1, 2010

Every few moments my screen displays a small blue bar with the words "Error Connection Server" (super English!).

Can someone explain why my screen has to be infested with this popup every few moments and how I can disable it?

View 2 Replies View Related

Android :: Socket Timeout Not Working?

Jun 5, 2009

In the sample code, a SocketTimeoutException should be thrown if the connection can't be stablished in a second, isn't it? But the timeout take a looong time to be detected.

View 4 Replies View Related

Android :: Connecting Android Bluetooth Client Socket To Ubuntu Server Socket

Jul 15, 2010

I am writing an Android app that should exchange data to a server over Bluetooth, with the server side on a PC running Ubuntu, using the bluez library, in C (or C++).

My Android app fails (IOException) when I try to connect to my server socket on the PC.

Here is essentially what I in the java code (in Android, full eclipse project here: http://dl.dropbox.com/u/2968234/ThinBTClient.zip)

CODE:...........

This throws IOException after a timeout of 10seconds or so.

On the server side (in Ubuntu 8.10), I basically set up a Bluetooth server socket, along the lines described in the example bluez/sdp-register.c

Down below is my C++ program. To compile it do

g++ -I/usr/include/glib-2.0/ -I/usr/lib/glib-2.0/include -o bt_server bt_server.cpp -lbluetooth

I can do the reverse succesfully, i.e. create a server socket in Android and connect from Linux, however this is not what I want to do!

I think either the problem has to do with my config of Ubuntu.

CODE:................

View 1 Replies View Related

Android :: Appbrain 500 - Error Server Error The Server Encountered An Error And Could Not Complete Your Request

May 5, 2010

Using appbrain on my PC seems to work fine when I'm not logged in. When I do log in and try to click on an app I get this error message:

"Error: Server Error The server encountered an error and could not complete your request. If the problem persists, please report your problem and mention this error message and the query that caused it."

Anyone else have this issue when using Appbrain on their pc?

Well, It looks like I solved the problem. I just deleted my account and created it again and it's fixed (for now).

View 1 Replies View Related

Android :: How To Connect Emulator To Socket Server?

Aug 6, 2010

So I have an android application that needs to connect to a socket server. That's simple enough if the socket server was running on my development machine. However the socket server is running on a server not only not on my own machine, but on a different subnet. How would I connect my emulator to the socket server? I understand how the port forwarding works to connect to the local machine, but I'm sort of confused on how I can redirect it across a subnet from my dev machine.

View 1 Replies View Related

Android :: Client-Server App / Bad Socket Exception

Mar 3, 2010

I have a simple client-server app on android. the android service communicates with the server via tcp sockets. the service sends a simple String to server which works. the server processes the string and sends back an object to the android service. the object implements the serializable interface. the object "leaves" the server successfully but at the point where the android service receives the object (socket.readObject()

View 1 Replies View Related

Android :: Server Certificates For Two Way Authentication SSL Socket

Oct 31, 2010

I'm working on an Android app that requires both client and server certificate authentication. I have an SSLClient class that I created that works beautifully on regular desktop Java SE 6. I've moved it into my Android project and I'm getting the following error: "KeyStore JKS implementation not found".I've looked online a bit and it looks like there's a possibility that Java Keystores are not supported on Android (awesome!) but I have a feeling there's more to it than that because none of the sample code I've found resembles what I'm trying to do at all. Everything I found talks about using an http client rather than raw SSL sockets. I need SSL sockets for this application.

View 1 Replies View Related

Android :: Can't Open Server Socket On Port 80 / How To Use

Jul 18, 2009

I was developing an app which need to open serversocket.

But, when i open one on poet 80, this throw a BindException :/ iven with the INTERNET permission. Open on other port work (ex: 8080).

Does this mean android not allow me to use this socket?

View 3 Replies View Related

Android :: Socket Freezes Using GSM Connection

May 27, 2010

I'm working on application that uses a socket connection.I've implemented 2 different Threads for the read() and the write() methods so they are not being blocked by the read.Everything is working well on the WiFi connection but when I switch to GSM connection the connection becomes unstable without any exception being thrown. It means that there are freezes.the write and read seems to work but no data is actually being piped.

View 10 Replies View Related

Android :: Socket Refused Connection

Dec 7, 2009

I wondered if there could be a specific reason why a server socket could refused a client request connection , the server running on one android device the other on the emulator?

View 2 Replies View Related

Android :: How To Manage Connection To A Socket?

Jun 21, 2010

I would like to know what is the recommendation for socket connection management in Android?In our App we would like to be connected to a TCP/IP server when our app is in the foreground or paused. So, create a connection to a TCP/ IP server when the App starts basically, On Create of the launcher activity. However, we do not want to create a new connection and close connection every time an activity is created, paused, destroyed or orientation changed. So, we save the connection object in the App class and the activities will reuse the same connection.Question is when do I close it? I would like to close the socket when the App is "paused", "stopped" or "destroyed". The problem is these messages are not sent in the App context. How can I figure out if the App is in foreground or not? Even the "Terminated" event for an App is not guaranteed to be delivered. So, in that case how do I know when to disconnect?

View 2 Replies View Related

Android :: Socket Freezes Via GSM Connection

May 24, 2010

I'm working on application that uses a socket connection. I've implemented 2 different Threads for the read() and the write() methods so they are not being blocked by the read. Everything is working well on the WiFi connection but when I switch to GSM connection the connection becomes unstable without any exception being thrown. It means that there are freezes at the write and read seems to work but no data is actually being piped.

View 2 Replies View Related

Android :: Bluetooth Socket Connection

Nov 11, 2010

I'm creating an application that uses an android to send and receive data via bluetooth. but I'm having problems when creating the socket. He gets caught in that line mmSocket btserver.accept = (); And I can not pair with any device.I have another doubt, I can make that communication with an android and a symbian?

View 1 Replies View Related

Android :: Server Socket Programming In 1.5 / Most Power Efficient Way?

Dec 2, 2009

I am doing a project where I have too develop an application that listens for incoming events by a service. The device that has to listen too events is an Android phone with Android SDK 1.5 on it. Currently the services that call events only implement communication trough UDP or TCP sockets. I can solve my problem by setting up a ServerSocket, but i doubt that's the most power efficient way. This application will be running most of the time, with Wi-Fi on, and I'd like too reach an long battery duration. I've been looking for options on the internet for my question for a while but i couldn't get a real answer.What is the most efficient way too listen to incoming events? Should I make an ServerSocket? or what are my options?Are there any other implementations that are more power efficient?

View 1 Replies View Related

Android :: Server Socket To Wake Up A Sleeping Phone

Mar 17, 2010

I noticed that if the Android phone is listening on a ServerSocket on the 3G network, and is then put to sleep with the power button, it no longer listens for incoming connections. The incoming TCP connection does not wake up the phone. Is this there a way to enable waking up a sleeping phone on incoming Server Socket connections, the way that incoming data on a regular Socket does?

View 2 Replies View Related

Android :: Server Socket Accept() Not Accepting Connections

Oct 27, 2010

I am trying to setup at ServerSocket on my Android phone, and send a char or int or anything from my computer. The code on the phone creates a ServerSocket and then blocks whilst waiting for a connection(plus some more bits if the socket is created. But I'm not getting this point, so left that out!)Basically, the phone is getting to accept, and the computer is not connecting. The xx.xx.xx.xx is the public IP of the phone I obtain programatically (and it matches up with checking on whatismyip.com).I have set the INTERNET permission on the phone. I have also been able to do this in reverse (ServerSocket on pc, client on phone).

View 2 Replies View Related

Android :: Detecting Socket Connection Failure

Apr 1, 2010

I am working on an app that uses a Socket to connect to a controller over TCP. The protocol library was written in Java and I am implementing it in android via a Service. where the Connection class is a Thread that handles the communications with the controller. It's where the Socket lives.I'm using the Preferences mechanism to store the IP and Port. If I feed the Socket the correct IP and Port, the Connection Service works beautifully. However, I am trying to simulate a user entering the wrong information and having the connection fail. The ultimate goal is to present a dialog and offer the ability to "reconnect" or "update settings". However, when I enter a wrong Port number, the application simply hangs.I was under the impression that Threads executed concurrently so I've tried moving the call to start the Connection Service to a Thread, but it still hangs the application.

View 3 Replies View Related

Android :: Unable To Send Data Over TCP From Java Socket To .net Tcp Server

Nov 2, 2010

i am trying to get an android app to send tcp data to a server on my network. The server was written in c#. When i use the code below to transmit data, the server only receives a whole series of.

Socket socket = new Socket(host, port);
PrintWriter pw = new PrintWriter(socket.getOutputStream(), true);
pw.print("test");
socket.close();

View 3 Replies View Related

Android :: PHP Socket Server (Push Notifications) - Security / Authentication

Aug 31, 2010

I have recently written a socket server in PHP that will be handling communication between an Android phone application and my PHP webserver. Due to the fact that Android doesn't natively support push style notifications we are going to be using our webserver as the middleware layer to handle our 'pushes'. The socket server is stable, runs well, and seems to scale nicely. While I would eventually like to re-write this in C I don't have the skill necessary to do that right now so I am going to be staying in PHP for at least a short while. As of this moment our Android emulator is able to communicate through the server, get pushes, etc. so that part is all covered.

My concern is that, right now, anyone can open a socket to my server and will be given a client connection. While we won't be passing sensitive data back and forth I don't want to allow just anyone to connect over and receive broadcast information, eat up my resources, and clog my server in general. The question is, how do I secure a server like this? Let's assume that I am running on port 25,000--can I set up some sort of SSL layer on that port and expect devices like the Android to be able to communicate over that port without any special protocols or jumping through hoops? I have considered asking the connecting clients to authenticate their user against our user database before being given a client connection, but that would require the passing of credentials in plain text over the network which I am not about to do.

I am rather new to straight TCP communication from PHP and feel like I might just be missing something simple that allows for authentication on this level.
Additional information: If I am able to get a valid username and password securely I would be using MySQL to validate the user and then accept/reject their connection based on the results of the query.

View 4 Replies View Related

Android :: Unable To Create Server Socket In Eclipse (java)

Oct 20, 2010

Hi, i am very new to programming in java however have a lot of experience in .NET (c# & vb.net). I am trying to create a new instance of a serversocket class in eclipse IDE and when i type the following code it is giving me an "Unhandled exception type IOException" and i havent even tried to run the code yet! I dont understand how my code is exceptioning before runtime or what i can do to fix it.

View 2 Replies View Related

Android : Make Socket Client - Server Source Code?

Apr 7, 2010

I want to make my phone communicate with computer with socket. I have try many kinds of source in internet. None of them works. The phone always display "HelloWorld <ActivityName>". Log.d() seems not work on my phone, because, I have used that, but nothing was printed.

View 3 Replies View Related

Android :: Permanent Socket Connection Drains Battery

Jul 15, 2010

I am developing an app which has one service running in the background even if the application is closed. This service basically listens to the server via socket connection. It is an app's requirement to keep one consistent connection open.  but this drains battery liek anything. I know socket is costly affair in the sense of battery life. Do anybody know any other way to keep communication channel open? or any optimization in using socket?

View 9 Replies View Related

Android :: Create Persistent Socket Connection On Droid?

Apr 29, 2010

First off, let me say that feel free to recommend me if long lived TCP persistent connections are the way to go or persistent HTTP connections are better.

I've also pre-read that instead of having a persistent connection, I can have a polling mechanism.

I'm just asking in the curious interest of how can I create a persistent connection from Android to a server?

View 2 Replies View Related

Android :: SSL Socket Blocks On Read While Changing Connection / Is It A Bug?

Feb 19, 2010

I assume that when I do a read on the inputstream, it blocks until it gets more data to read.
I also assume that when the connection is closed, the read throws an IOException.

The problem is that sometimes when I change the connection from carrier to WiFi or from WiFi to carrier, the read just gets stuck and never throws the IOException.

The SDK is 1.5 and the phone a HTC Hero.

This behavior is quite ugly for me because I need to stay always connected.
Does someone else have ever seen this problem ? Is it a bug or am I the bug?

View 2 Replies View Related

Android :: Make Beep Sound Notification On Socket Connection Establishment?

Aug 3, 2010

How can I make the Device sound a beep when socket connection has been established. In other words, how to set a notification tone when an event occurs in Android sdk?

View 1 Replies View Related

Android :: Application Launching Timeout Expired - Exception Error

Sep 13, 2010

I have one application in android when I run that application it shows that exception

09-13 16:38:25.049: WARN/dalvikvm(269): VFY: arbitrarily rejecting large method (regs=132 count=21332)
09-13 16:38:25.049: WARN/dalvikvm(269): VFY: rejected Lcom/ExtraCharge/Calc;.onClick (Landroid/view/View;)V
09-13 16:38:25.059: WARN/dalvikvm(269): Verifier rejected class Lcom/ExtraCharge/Calc;
09-13 16:38:25.059: WARN/dalvikvm(269): Class init failed in newInstance call (Lcom/ExtraCharge/Calc;)
09-13 16:38:34.883: WARN/ActivityManager(64): Launch timeout has expired, giving up wake lock!
09-13 16:38:34.999: WARN/ActivityManager(64): Activity idle timeout for HistoryRecord{43f8da58 com.ExtraCharge/.Calc}

View 1 Replies View Related

Android :: Java Socket Not Throwing Exceptions On Dead Socket?

Jun 29, 2010

We have a simple client server architecture between our mobile device and our server both written in Java. An extremely simple ServerSocket and Socket implementation. However one problem is that when the client terminates abruptly (without closing the socket properly) the server does not know that it is disconnected. Furthermore, the server can continue to write to this socket without getting any exceptions. Why? According to documentation Java sockets should throw exceptions if you try to write to a socket that is not reachable on the other end!

View 5 Replies View Related

Android :: How Can Android Know That Socket Is Disconnected By Server?

Jun 6, 2009

I wrote one application using socket, which connectes to one server. for some reasone, the server may Disconnect the connection, I noticed that once the connection is disconnected, android GC starts to work, and the emulator is freeze, after a while, my application got IOException, then GC stop to work, who know why?

View 2 Replies View Related

Android :: Socket Programming - Java - Many Clients One Socket

Nov 12, 2009

Essentially Im trying to get many many java clients connect to a socket on my ColdFusion server (Using the Socket Gateway). However before i even start to code this, Im a little confused about sockets and their performance. First of all, are sockets meant for many(1000+) clients connecting to one socket (say port 2202) on one server? How is the performance if all there waiting for is basically a ping, or something such that when these clients receive this "ping" they can go get some new data.

View 5 Replies View Related

Android :: SQL Server Connection

Aug 16, 2009

I am trying to connect remote ms sql server 2005  and tried something but I could'nt. Does any of you know to connect sql server? I searched and I realize that Driver must be loaded.

View 3 Replies View Related

Android :: Android Socket Connection Refused

Mar 11, 2010

I am trying to open a Socket on Android but everytime I try I keep getting connection refused error no matter what way I try.The error happens on the following line of code where I try to create the connection.

View 2 Replies View Related

Android :: Android Device To PC's Socket Connection

Oct 7, 2010

I am facing problem to establish a socket connection from android device to PC's a specific port like 8080. I just want to create a socket which will connect to the specific port and also write some data stream on that port.I have written some code for this purpose.

View 3 Replies View Related

Android :: How To Make Connection With UDP Server?

Jun 22, 2010

I am very new to Android. I need to make a connection with an UDP server by using my Android UDP client. Now I need to know how to work with UDP in Android?

View 2 Replies View Related

Android :: App And Website Server Connection

Sep 13, 2010

I want to create a browser to view as an administration.My project is about ferry booking using an android phone. The application is connected to the server. The ferry timing and other info are retrieved via server connection. The database is currently in Microsoft Access.My question is how do I create a browser to view data (e.g view users, delete users, create notification etc etc)? I want to create so called a 'website' that have access to the same database as the android application. Do I use Microsoft Visual Studio? How am I suppose to create a connection to Microsoft Access so that I can edit the database appropriately?

View 1 Replies View Related

Android :: Server Connection In Droid Application

Aug 23, 2010

How can i connect to the server in Android . Give me Some code it will really helpful for me .

View 1 Replies View Related

HTC Desire :: Google Talk - Lost Connection To Server

Jun 8, 2010

I have a question about Google Talk. Is there any way to keep it from disconnecting after a while after the screen has been turned off? I have "always-on mobile data" active but after a minute or so after turning the screen of Google Talk disconnects and I don't receive any messages until I manually turn on the screen and wait for it to reconnect and retrieve the new messages.Just to note it doesn't actually show the splash screen saying signing into Google Talk it just says "Lost connection to server. Messages will be sent when online" bellow the most recent message.

View 8 Replies View Related

Samsung Captivate :: Unable To Open Connection To Server

Jul 23, 2010

so I've been using email for a while now, gmail account, today its telling me "unable to open connection to server" and I don't think I changed any settings, any idea what's going on?

View 9 Replies View Related

Motorola Droid :: Unable To Open Connection To Server?

Aug 9, 2010

I have exchange set up on my Droid through the email program that comes with the phone.. Its been working fine until this weekend, really. 3 separate times, it's failed to load my inbox or sync new messages, and it pops up with the unable to open connection to server message.Ive quadruple checked all of my settings, removed my account, re-added my account, refreshed it, and still, it wont sync my inbox and it still shows that message. I even tried installing touchdown, and touchdown wouldnt sync my email either? I didnt like how it kept my contacts all separate from my gmail contacts, so I went ahead and uninstalled it. I REALLY just want to use the regular exchange email program..But get this, I am able to sync my sent mail though, and Im able to SEND email messages, just not receive them.

We have our own exchange server for our company, and we have 4 other people in our office running exchange on their phones, (2 Motorola Droids, 1 Droid X, and an HTC 6800...) Nobody else is having issues with their phones syncing their email so I know this isnt an exchange issue, but a phone issue instead.Ive run an update (just the *228) on my phone, reset it like 3 times, killed all the apps, and it still wont sync my inbox (just my sent mail..) And again, it'll send email but wont receive it.I know calling or going into a verizon store will be a waste of time.

View 15 Replies View Related

Android :: Added Internet Permission - No Connection To Server

Sep 8, 2010

I wrote this:
HttpsURLConnection con = (HttpsURLConnection) new URL ("Here my server URL is provided")
openConnection(); con.setDoOutput(true); con.setDoInput(true); con.connect();//
At this point I am getting error saying Java.net.SocketException:permission denied..

Actually I am sending request to server after getting request in XML format I want parse using
xr.parse(new InputSource("URL"));
But its giving error at con.connect(); only. And I have added Internet permission in manifest file.

View 3 Replies View Related

Android :: Set Up Mock Corporate Exchange Server Connection?

Jan 11, 2010

test my app with an android device that is using a corporate calendar.... alternatively, can you tell me how to set up a mock corporate exchange server connection (and thus corporate calendar) on the emulator?

View 4 Replies View Related

ADVERTISEMENT