"Error code 15: This request was blocked by security rules"It is a common mistake some users encounter when trying to access certain websites. The browser initiates a request to access a certain site, but the website's security rules prevent it from doing so and that's when it encounters the error. .
However, the problem is nowhere related to the browser as it can occur in any browser and on any version of Windows. Some of the reasons you would see this error could be, if the date and time are wrong, your IP range is location blocked, or if some third party antivirus software on your system is blocking you from accessing the site.
However, the good news is that we have some solutions for the problem “This request was blocked by security rules” - Error code 15 or 16 on your Windows 10 PC. Let's see how.
Method 1: via date and time settings
Step 1: press the Win + me keys together on the keyboard to open the file settings window.
Step 2: A settings window, click Time and language.
Step 3: Then they lead you to Date and time section automatically. On the right side of the panel, check if the time and date are correct.
Step 4: If the time and date are not correct, turn it off Set the time automatically.
So go to Set the date and time manually and click Modify button to do it.
Step 4: Also make sure that Time zone is correct and if you want you can turn the Automatically adjusts for daylight saving time function enabled or disabled, depending on relevance.
Close the Settings window and try to open the website showing the error. It should work fine now. But if the problem persists, try the second method.
Method 2: via internet properties
Step 1: Right click on Home and select run from the menu.
Step 2: A Run command box type inetcpl.cpl and press ok to open the file Internet property window.
Step 3: A Internet property dialog box, go to Connections language.
Then click LAN settings.
Step 4: A LAN settings dialog box below Automatic configuration, make sure the box next to Automatically detect settings has a check mark.
print ok to save changes and exit.
Then press again To apply Y ok a Internet property window.
Now try to access the website that showed the error and it should open normally now.