Talend Job Statistics error, Connection refused, connecting to socket

https://community.talend.com/t5/Administering-and-Monitoring/resolved-Sockets-range-to-get-statistics/td-p/99764

When executing a Talend job via TAC (Talend Administration Center / the Talend Server), the following error message can be returned if the JobServer / Execution service is a remote server.
ie The JobServer or Execution service isn't on the same server as TAC.

[statistics] connecting to socket on port 10226 [statistics] connection refused

The statistics port 10226 is chosen at random by the server from a range of 10000 to 11000.
The connection is refused if this is blocked by a firewall (or security group in the case of AWS instances).
The details below help correct this.

Changing Statistics port settings

TOS (Talend Open Studio)

Window -> Preferences -> Talend -> Run/Debug and there you can change the stats port range.

TAC

For Talend Administration Center, edit the following file:
TOMCAT_FOLDER/webapps/org.talend.administrator/WEB-INF/classes/configuration.properties
Look for these lines (or add them onto the end of the file):
# The range where find a free port on the Administrator machine, where the job will send the statistics informations during its execution
scheduler.conf.statisticsRangePorts=10000-11000

And then change the scheduler.conf.statisticsRangePorts parameter for the desired range, like this:
scheduler.conf.statisticsRangePorts=10000-10010

The file should look something like this: