Gitlab UI is not importing repo with HTTPS signed by COMODO

I have installed a local instance of gitlab CE with OS RHEL 6.5 64bit. Gitlab vesion is GitLab
7.10.1 (d5c71c8)

Problem: I cannot import the following repo via GitLab UI. It stucked on importing status but nothing actually is imported.

HTTPS REPO w/ ISSUE: (with credentials) (without credentials)

Additional Notes:

  • Import using other repo using HTTPS is working except above repo which seems using wildcard certificate.
  • Weird thing is import of above HTTPS REPO w/ ISSUE is working via online/public gitlab CE site. It is not working on mine.
  • From server, manually cloning the above https repo url is working via: