ERROR - Unknown host error - connection problem?

Hi,

The topic name is the error I get in last couple of days, so I thought to report

What is happening: I can make couple of downloads (from whatever server) and than this error occures and I must exit FRD and then start it again. After 2-3 downloads same thing again :/

I was looking for some log files, and found only this app.log:

Jun 12, 2009 2:32:47 AM org.jdesktop.application.Task failed
SEVERE: cz.vity.freerapid.core.tasks.DownloadTask@395aaf failed: java.net.UnknownHostException: up1wz2.uploading.com
java.net.UnknownHostException: up1wz2.uploading.com
	at java.net.PlainSocketImpl.connect(Unknown Source)
	at java.net.SocksSocketImpl.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at java.net.Socket.(Unknown Source)
	at java.net.Socket.(Unknown Source)
	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
	at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
	at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
	at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
	at cz.vity.freerapid.plugins.webclient.DownloadClient.makeRequestFile(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.DownloadClient.makeRequestFile(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.DownloadClient.makeFinalRequestForFile(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.AbstractRunner.tryDownloadAndSaveFile(Unknown Source)
	at cz.vity.freerapid.plugins.services.uploading.UploadingRunner.run(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.AbstractFileShareService.run(Unknown Source)
	at cz.vity.freerapid.core.tasks.DownloadTask.doInBackground(Unknown Source)
	at cz.vity.freerapid.core.tasks.DownloadTask.doInBackground(Unknown Source)
	at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Jun 12, 2009 2:32:47 AM cz.vity.freerapid.utilities.LogUtils processException
SEVERE: 
java.net.UnknownHostException: up1wz2.uploading.com
	at java.net.PlainSocketImpl.connect(Unknown Source)
	at java.net.SocksSocketImpl.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at java.net.Socket.connect(Unknown Source)
	at java.net.Socket.(Unknown Source)
	at java.net.Socket.(Unknown Source)
	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
	at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
	at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
	at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
	at cz.vity.freerapid.plugins.webclient.DownloadClient.makeRequestFile(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.DownloadClient.makeRequestFile(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.DownloadClient.makeFinalRequestForFile(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.AbstractRunner.tryDownloadAndSaveFile(Unknown Source)
	at cz.vity.freerapid.plugins.services.uploading.UploadingRunner.run(Unknown Source)
	at cz.vity.freerapid.plugins.webclient.AbstractFileShareService.run(Unknown Source)
	at cz.vity.freerapid.core.tasks.DownloadTask.doInBackground(Unknown Source)
	at cz.vity.freerapid.core.tasks.DownloadTask.doInBackground(Unknown Source)
	at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

Thanks

UnknownHostException usually means a problem with internet connection - firewall or connection is down.

-------------------------------------

Avira (my anti-virus program) is the cause for the problem - when disabled the error is gone, but I didn't change any settings there so I didn't thought to check that
Strange though that it downloads couple of files and then this error

Maybe I should change my anti virus program, it's difficult for me to configure it but it's so lighter than Kaspersky if I may say ;)

Well, after little investigation I've come to conclusion that it has nothing to do with Avira, but it was Nmap that I installed couple of days ago through Nettools bundle. The installation placed Nmap files in system32 folder and was interrupting also other connections.
Just to clarify ;)