EUM Agent Not Connected with APM Server

EUM Agent Not Connected with APM Server

Dear, 
I have installed APM on windows server with port ID 8081  ( http://apm_server:8081  is currently running APM )
  
all the monitoring is well
I have also license of EUM .. 
when i install EUM agent at Client and provide the APM server IP and port 8081. No agent detect on Server ... 
I have also try to install EUM on APM server to avoid the firewall / network problem but the problem persist. 
please guide me in this regard 
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