Fatal error while executing protocol 'ReceivingSearch'

[swy0710]

A lot of users are facing the below issue.
What is the problem??
Please help.

Exception java.lang.RuntimeException: Fatal error while executing protocol 'ReceivingSearch': org.fourthline.cling.transport.RouterException: Router wasn't available exclusively after waiting 15000ms, lock failed: ReadLock
org.fourthline.cling.protocol.ReceivingAsync.run (ReceivingAsync.java)
java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1162)
java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:636)
java.lang.Thread.run (Thread.java:764)
Caused by org.fourthline.cling.transport.RouterException: Router wasn't available exclusively after waiting 15000ms, lock failed: ReadLock
org.fourthline.cling.transport.RouterImpl.lock (RouterImpl.java)
org.fourthline.cling.transport.RouterImpl.lock (RouterImpl.java)
org.fourthline.cling.transport.RouterImpl.getActiveStreamServers (RouterImpl.java)
org.fourthline.cling.protocol.async.ReceivingSearch.execute (ReceivingSearch.java)
org.fourthline.cling.protocol.ReceivingAsync.run (ReceivingAsync.java)
java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1162)
java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:636)
java.lang.Thread.run (Thread.java:764)

[mehao]

I got the same problem....