DPA reports are blank after I changed the IP address of the host

Hi,

I am using DPA 6.0 SP1 to monitor and report my Networker server. recently I changed the IP address (host name remains the same, unchanged) of the Networker server (DPA Host) . since then the DPA reports are blank. I get the following message in the dpaagent log file on the host.

WARN     8920.19072    20140731:123822        agent.manager - agentManagerWorker(): Store and forward queue is full - requeueing request networker:perf on :NetWorker

DBG1     8920.19072    20140731:123822       agent.reqqueue - aapiReturnAgentRequest(): Request networker:perf for target :NetWorker will next run at 1406781802

WARN     8920.19072    20140731:124322        agent.manager - agentManagerWorker(): Store and forward queue is full - requeueing request networker:jobmonitor on .net:NetWorker

Any Idea how to resolve it. Appreciate your help.

Thanks in Advance.