agent not able to communicate to master

[Ankita kumari]

[root@puppetagentappd /]# sudo puppet agent --test
Info: Caching certificate for puppetagentappd.eng.vmware.com
Info: Caching certificate for puppetagentappd.eng.vmware.com
Warning: Unable to fetch my node definition, but the agent run will continue:
Warning: Error 400 on SERVER: Connection refused - connect(2)
Info: Retrieving plugin
Info: Loading facts in /var/lib/puppet/lib/facter/postgres_default_version.rb
Info: Loading facts in /var/lib/puppet/lib/facter/ip6tables_version.rb
Info: Loading facts in /var/lib/puppet/lib/facter/pe_build.rb
Info: Loading facts in /var/lib/puppet/lib/facter/concat_basedir.rb
Info: Loading facts in /var/lib/puppet/lib/facter/custom_auth_conf.rb
Info: Loading facts in /var/lib/puppet/lib/facter/iptables_version.rb
Info: Loading facts in /var/lib/puppet/lib/facter/pe_postgres_default_version.rb
Info: Loading facts in /var/lib/puppet/lib/facter/pe_version.rb
Info: Loading facts in /var/lib/puppet/lib/facter/staging_http_get.rb
Info: Loading facts in /var/lib/puppet/lib/facter/puppet_vardir.rb
Info: Loading facts in /var/lib/puppet/lib/facter/facter_dot_d.rb
Info: Loading facts in /var/lib/puppet/lib/facter/iptables_persistent_version.rb
Info: Loading facts in /var/lib/puppet/lib/facter/windows.rb
Info: Loading facts in /var/lib/puppet/lib/facter/pe_puppetdb_server_status.rb
Info: Loading facts in /var/lib/puppet/lib/facter/root_home.rb
Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Failed when searching for node puppetagentappd.eng.vmware.com: Connection refused - connect(2)
Warning: Not using cache on failed catalog
Error: Could not retrieve catalog; skipping run

what should i do?

[José Luis Ledesma]

Does the other nodes work? If not review that the puppet master is up & running.

If its the only node failing review  firewalls.

Regards

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[Ankita kumari]

I installed the master again and set the specified settings. Then it started working correctly.