puppet client is not taking new hostname

[root@client ~]# puppet agent --test --verbose --server puppet.example.com
Warning: Unable to fetch my node definition, but the agent run will continue:
Warning: Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Info: Retrieving pluginfacts
Error: /File[/var/lib/puppet/facts.d]: Failed to generate additional resources using 'eval_generate': Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Error: /File[/var/lib/puppet/facts.d]: Could not evaluate: Could not retrieve file metadata for puppet://puppet.example.com/pluginfacts: Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Wrapped exception:
Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Info: Retrieving plugin
Error: /File[/var/lib/puppet/lib]: Failed to generate additional resources using 'eval_generate': Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Error: /File[/var/lib/puppet/lib]: Could not evaluate: Could not retrieve file metadata for puppet://puppet.example.com/plugins: Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Wrapped exception:
Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Error: Could not retrieve catalog from remote server: Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com
Warning: Not using cache on failed catalog
Error: Could not retrieve catalog; skipping run
Error: Could not send report: Server hostname 'puppet.example.com' did not match server certificate; expected one of puppet.vlan1.phub.net.cable.rogers.com, DNS:puppet, DNS:puppet.vlan1.phub.net.cable.rogers.com