Yes I restart both server and agent. And I obtain a positive answer using nxget
This is the agent text
MasterServers = netxms.demo
SubAgent = ping.nsm
 
*PING
Timeout = 1000
PacketRate = 12
Target = 10.194.133.1
This is the answer from nxget
C:\Users\marlon.hurtado>nxget localhost icmp.ping(10.194.133.1)
50
DCI config is in attachment
				
			This is the agent text
MasterServers = netxms.demo
SubAgent = ping.nsm
*PING
Timeout = 1000
PacketRate = 12
Target = 10.194.133.1
This is the answer from nxget
C:\Users\marlon.hurtado>nxget localhost icmp.ping(10.194.133.1)
50
DCI config is in attachment