android - Xmpp connection failed with smack -


i have android application in use smack library connect xmpp server. application has worked in past, since today, tablet not connect server.

on line : 

connection.connect();

i got error : 

w/system.err﹕ org.jivesoftware.smack.smackexception$connectionexception: following addresses failed: '192.168.57.100:5222' failed because java.net.connectexception: failed connect /192.168.57.100 (port 5222) after 30000ms: isconnected failed: ehostunreach (no route host)  w/system.err﹕ @ org.jivesoftware.smack.tcp.xmpptcpconnection.connectusingconfiguration(xmpptcpconnection.java:596) 07-08 11:46:19.730  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ org.jivesoftware.smack.tcp.xmpptcpconnection.connectinternal(xmpptcpconnection.java:830) 07-08 11:46:19.730  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ org.jivesoftware.smack.abstractxmppconnection.connect(abstractxmppconnection.java:360) 07-08 11:46:19.730  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ com.crisalid.ecrancuisine.postefabactivity$xmppasynctask.doinbackground(postefabactivity.java:583) 07-08 11:46:19.730  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ com.crisalid.ecrancuisine.postefabactivity$xmppasynctask.doinbackground(postefabactivity.java:284) 07-08 11:46:19.730  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ android.os.asynctask$2.call(asynctask.java:288) 07-08 11:46:19.730  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ java.util.concurrent.futuretask.run(futuretask.java:237) 07-08 11:46:19.731  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ android.os.asynctask$serialexecutor$1.run(asynctask.java:231) 07-08 11:46:19.731  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1112) 07-08 11:46:19.731  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:587) 07-08 11:46:19.731  13812-14023/com.crisalid.ecrancuisine w/system.err﹕ @ java.lang.thread.run(thread.java:848)

there strange things append : installed application on tablet , on phone. same configuration, don't error on phone i'm getting on tablet.

i tried disable/ enable wifi on tablet nothings changes. checked if server up, , working.

have idea ?

selvin right, tablet connected te right wifi dhcp attributing me wrong ip. on tablet ip 10.20.64.152 wasn't on network (which 192.168.57.*).

the solution set static ip.


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