Password reset email question

I have recently changed some CRM’s over to new servers with fixed IP’s, however when a password is reset for the user it is still sending out the link to the old server IP.
I have tried resetting the config.php as someone else suggested on another forum post by another member with a similar problem but this hasn’t sorted the issue.
Does anyone know how to reset the systems reset password email so that this issue is fixed…if you understand what Im trying to ask?? :slight_smile:
Thanks in advance

Hi. In config.php, did you check both of these values?

  'host_name' => '',
  'site_url' => '',