Steps to delete the Certificate(s) in MAC machines:

1. Click on “Go” tab on the desktop menu bar.

2. Click on “Utilities”.

3. Double Click on “Keychain Access” option from Utilities page

4. Select “System” option from Keychain Access page

5. Select “SennComRootCA” certificate

6. Press delete key

7. System will prompt with “Keychain Access is trying to modify the system keychain’ pop-

up

8. Enter the valid User Name: and Password:

9. Click on “Modify Keychain” button

10. Confirmation pop-up is displayed and Click on “Delete” button

11. System will prompt with “You are making changes to the System Certificate Trust

Settings.” As shown below

12. Again Enter the valid User Name: and Password:

13. Click on “Update Settings” button

14. Repeat the Steps from 3 to 13 for the certificate 127.0.0.1 (which is valid from 13th Jan

2017 to 13th Jan 2027)

15. Re-check or Verify whether ‘SenncomRootCA’ & ‘127.0.0.1’ Certificates are deleted or

not, as shown below