Problem
On Windows system, when you select a task that requires a server restart in Administration Services UI, and run that task, the task executes and the message 'Restarting DASH server. This might take a few minutes' is displayed. However, when you refresh Administration Services UI, the message 'Unable to connect to server' is displayed. The logs contain the following error messages: [3/14/13 11:30:15:404 IST] 00000001 TCPPort E TCPC0003E: TCP Channel TCP_2 initialization failed. The socket bind failed for host * and port 16310. The port may already be in use. [3/14/13 11:30:15:405 IST] 00000001 WSChannelFram E CHFW0034W: The Transport Channel Service detected transport chain HttpQueueInboundDefault failed. The service will retry to start chain HttpQueueInboundDefault every 5000 milliseconds for up to 60 attempts. [3/14/13 11:30:17:422 IST] 00000001 TCPPort E TCPC0003E: TCP Channel TCP_4 initialization failed. The socket bind failed for host * and port 16311. The port may already be in use. [3/14/13 11:30:17:423 IST] 00000001 WSChannelFram E CHFW0034W: The Transport Channel Service detected transport chain HttpQueueInboundDefaultSecure failed. The service will retry to start chain HttpQueueInboundDefaultSecure every 5000 milliseconds for up to 60 attempts. [3/14/13 11:30:19:436 IST] 00000001 TCPPort E TCPC0003E: TCP Channel TCP_3 initialization failed. The socket bind failed for host * and port 16316. The port may already be in use. [3/14/13 11:30:19:437 IST] 00000001 WSChannelFram E CHFW0034W: The Transport Channel Service detected transport chain WCInboundAdminSecure failed. The service will retry to start chain WCInboundAdminSecure every 5000 milliseconds for up to 60 attempts. [3/14/13 11:30:22:447 IST] 00000001 TCPPort E TCPC0003E: TCP Channel TCP_4 initialization failed. The socket bind failed for host * and port 16311. The port may already be in use. [3/14/13 11:30:22:448 IST] 00000001 WSChannelFram E CHFW0034W: The Transport Channel Service detected transport chain WCInboundDefaultSecure failed. The service will retry to start chain WCInboundDefaultSecure every 5000 milliseconds for up to 60 attempts. [3/14/13 11:30:25:496 IST] 00000001 TCPPort E TCPC0003E: TCP Channel TCP_1 initialization failed. The socket bind failed for host * and port 16315. The port may already be in use. [3/14/13 11:30:25:496 IST] 00000001 WSChannelFram E CHFW0034W: The Transport Channel Service detected transport chain SOAPAcceptorChain1 failed. The service will retry to start chain SOAPAcceptorChain1 every 5000 milliseconds for up to 60 attempts. [3/14/13 11:30:28:504 IST] 00000001 TCPPort E TCPC0003E: TCP Channel TCP_4 initialization failed. The socket bind failed for host * and port 16311. The port may already be in use. [3/14/13 11:30:28:505 IST] 00000001 WSChannelFram E CHFW0034W: The Transport Channel Service detected transport chain SOAPAcceptorChain2 failed. The service will retry to start chain SOAPAcceptorChain2 every 5000 milliseconds for up to 60 attempts.
Resolving The Problem
To set this property for WebSphere Application Server:
1. Open the file setupCmdLine.bat in the <WAS_HOME>/bin/ directory.
2. Add the following line to the file:
SET IBM_JAVA_OPTIONS="-Djava.net.preferIPv4Stack=true"
3. Save the file and restart the application server.
This ensures that IPv4 is used for communication.
Reference Link : https://www.ibm.com/support/pages/error-unable-connect-server-displayed-when-you-run-task-prompts-server-restart
