I have an AWS instance I want to add in netxms. I installed the agent and changed the agent port to a non standard port ex 3355 however i can not communicate to it from the server. I changed agent port settings to match on netxms but it does not seem to want to connect.
Did you add firewall rule? You can run agent with debug level 6 and check if there are incoming connections at all, and if there is any, why they are not accepted.
Best regards,
Victor