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POmulticastlock not working on Android 2.2 phone
 

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  1. POmulticastlock not working on Android 2.2 phone
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    <p>I need to be able to receive broadcasts on the Wifi of this phone. It's an HTC Desire, about 2 years old, running Android 2.2.</p> <p>I've followed the docs and some example code I found, and ended up with this code to enable the multicast:</p> <pre><code>mWifiManager = (WifiManager)getSystemService(Context.WIFI_SERVICE); WifiManager.MulticastLock multicastLock = mWifiManager.createMulticastLock("net.inside.broadcast"); multicastLock.setReferenceCounted(true); multicastLock.acquire(); Log.i("BCXXX", "multicastLock.isHeld() = " + multicastLock.isHeld()); Log.i("BCXXX", "multicastLock.toString() = " + multicastLock.toString()); </code></pre> <p>The log output follows here:</p> <pre><code>I/BCXXX ( 3302): multicastLock.isHeld() = true I/BCXXX ( 3302): multicastLock.toString() = MulticastLock{ 45fa2b88; held; refcounted: refcount = 1 } </code></pre> <p>This seems to confirm that the multicastLock should be held, meaning multicast should work. However, it doesn't. The Android app simply does not receive any broadcast packets except for its own, i.e. the one it sends out to the others. The other machines I should mention can see the Android phone just fine and receive its broadcast messages. I've tried addressing the packets to 255.255.255.255 as well as 192.168.0.255 (with 192.168.0. obviously being the net everyone is connected to in the LAN).</p> <p>This is a project built with Unity 3.5 and both the Windows and OS X builds work as expected. The Android plugin does get called (as is evident from the log entries).</p> <p>Any ideas anyone?</p>
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