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How to fix error code 16 This request was blocked by the security rules?

Alton Alexander
By Alton AlexanderUpdated on June 3rd, 2022

Error code 16 indicates that the request was blocked by the security rules. This can happen for a variety of reasons, but is most likely due to a rule that is blocking requests from the specified IP address or range of IP addresses.

Other common searches for this error include:

  • google error code 16
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  • error code 15 -7a

1. Add the specific URL to the security rules as an exception

  1. Open the Security Rules Manager and select the relevant rule.
  2. In the Properties panel, click the Add button.
  3. Type the URL you wish to allow into the Address box and press Enter.
  4. Click the Add All button.
  5. Click the OK button.

2. Modify the security rules to allow access from the specific URL

  1. In the IIS Manager, find the security rule that is blocking access to the URL.
  2. In the Properties window, find the Security tab.
  3. In the Security tab, find the Advanced Security Settings section.
  4. In the Advanced Security Settings section, find the URL column.
  5. In the URL column, add the URL that you want to allow access to.
  6. In the Security Rules section, click Add.
  7. In the Add Security Rule dialog box, in the Name field, type a name for the security rule.
  8. In the Action field, type Allow.
  9. In the Access column, select the Allow check box.
  10. In the Reference column, type the URL of the IIS server that you want to allow access to.
  11. Click OK.
  12. In the Security Rules section, click Apply.
  13. In the IIS Manager, find the security rule that is now allowing access to the URL.
  14. In the Properties window, find the Security tab.
  15. In the Security tab, find the Advanced Security Settings section.
  16. In the Advanced Security Settings section, find the URL column.
  17. In the URL column, remove the URL that you previously added.
  18. In the Security Rules section, click Add.
  19. In the Add Security Rule dialog box, in the Name field, type a new name for the security rule.
  20. In the Action field, type Allow.
  21. In the Access column, select the Allow check box.
  22. In the Reference column, type the URL of the IIS server that you want to allow access to.
  23. Click OK.
  24. In the Security Rules section, click Apply.
  25. In the IIS Manager, find the security rule that is now allowing access to the URL.
  26. In the Properties window, find the Security tab.
  27. In the Security tab, find the Advanced Security Settings section.
  28. In the Advanced Security Settings section, find the URL column.
  29. In the URL column, replace the URL that you previously added with the URL of the IIS server that you want to allow access to.

3. Remove the security rules that are blocking access from the specific URL

  1. From the Settings page, click Security and then click the rule that is blocking the access from the specific URL.
  2. On the Details page, click the Remove button.
  3. On the confirmation page, click the Remove button.