@Reethika
If its not communicating, you can no longer deploy apps to the client.
1) Does the client sending data to splunk indexer?
index=_internal host="client"
2) If yes, try to restart splunk service on the client
3) Is there any firewall between client & Deployment Server?
you can check this from DC doing telnet forwarderip:9997
4) if it checks out, please look for errors in the splunkd logs on the client .
