Could not connect to the agent on the specified port (HOST-SID:PORT) (4297212)

After installation and attempting to a connect the PA agents through the client pc, error "Could not connect to the agent on the specified port (HOST-SID:PORT)" will display.

Ports not open bi-directionally or there is a missing route to all tiers involved.

Things to check:

1. Validate the firewall between the two hosts, mainly the Monitored Host and the Middleware.

Please do the following:

Validation of Firewall between two hosts

Question
How could I detect if there is a firewall between 'host A' to 'host B'?
Answer
In order to validate weather there is a firewall between two hosts on a specific port number we should use the pa_utilities_oracle (located in the <inst_dir>/agents/StealthCollect/6.0/bin directory) as follows:
. Set an environment parameter according to the following table:
o Solaris / Osf1 / Linux / Linux_ia: LD_LIBRARY_PATH
o Hpux / Hpux_ia : SHLIB_PATH
o Aix: LIBPATH
setenv LD_LIBRARY_PATH ${LD_LIBRARY_PATH}:<inst_dir>/agents/StealthCollect/6.0/bin
or
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:<inst_dir>/agents/StealthCollect/6.0/bin

Check if a specific port number is opened both sides:
. On host A run: (such as the StealthCollect server host)
o pa_utilities_oracle api_test_oracle -server <port number>
. On host B run: (such as the PA client host)
o pa_utilities_oracle api_test_oracle -client <host A name> < port number>
If the port is open on both directions then you should get on the client side an acknowledgement each time you run it, for example:

=============================================
This server has been contacted 1 time.

2. From the client pc, launch the Internet browser and type "http://monitored_host:port"

If one or both of these tests fail, please suggest to consult their network administrator.

 

3. Be sure that you are connecting to the correct monitored instance and not the repository instance.