How does Agent Scan work ?

When you install Agent for the first time, It will initiate the scan immediately and send the data via application port (8080 or 443 as you configured) to Server.

But when you scan from the Application, It will first try to check whether the client machine is reachable by Ping test and then will trigger the agent via 9000 port.

1. For agent scan, the application looks for both IP address and machine name, please make sure nslookup resolves with IP address and machine name.

Example :

cmd>nslookup Helpdesk.com

Output should be its IP address 192.121.11.121

Reverse lookup

cmdd>nslookup 192.121.11.121

Output should be its IP address Helpdesk.com

2 . Telnet on agent and application port should work. Default agent port is configured on 9000, on scan application reaches client on 9000, collects back scanned info on 9000 and application installed port (default port 8080)

Example :

From server

cmd>Telent client1 9000

From client

cmd>Telent Helpdesk.com 8080

and

cmd>Telent Helpdesk.com 9000

3 Connect to the client machine, check with the registry, see if it has correct server name, protocol, agent port, and application port.

[For 64 bit]

RUN>Regedit

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ZOHO Corp\ManageEngine AssetExplorer\Agent> note down the agent ID

(Refer attached image)