Hi,
  
 Recently i came across a issue, where secondary site was not communicating with Primary:
  
 Situation:
 The Pending Status persists
 There is no site status available
 There are multiple errors related to component installation which is not happening
 Sitecomp.log does not give an errors
 Many services are missing like SMS_Executive
  
 Solution:
 I found out the issue was Pub key was not getting exchanged between secondary and primary. Once i solved this issue. The secondary site was up and running.
  
  
 Regards,
 Johnny