Sophos Firewall Blocking Page

Question

Hi! 
 I am currently exploring Sophos based on my prior experience with it back in 2014. I am gradually migrating from my MikroTik setup to a Sophos Home Firewall, primarily due to its advanced security features. 
 I have set up Sophos Home Firewall on Protectli Vault Series mini-PC hardware, and it is functioning as expected. I have enabled Web, Application, Antivirus, and IPS filtering on my LAN-to-WAN firewall rules. Additionally, I have configured multiple WAN connections with SD-WAN for application-based rerouting, particularly for video and conference calls required for office work. 
 I have a question regarding the blocking page. Do I need to enable user authentication to display a more detailed blocking page that explains what content is being blocked and why? At present, the blocking page only shows the message: "Access Blocked: Policy block due to web category" (as seen in the left-side image). 
 How can I configure the blocking page to display the version shown on the right side? 
 
 Regards

Michael Dunn · Accepted Answer

Found the page, it is a fallback in DPI mode. Can you go to Administration, Admin and User settings > Admin console and end user interaction When redirecting users... By default it should be "Use the IP address of the first internal interface" and that is has the IP of the first LAN port. What do you have on the page (screenshot). Can you change it to the configured hostname (assuming the client can DNS resolve the hostname).

Michael Dunn · Answer

The block page that you are seeing is not generated by the Sophos Firewall. Do you have an endpoint solution or something else that is also doing blocking, that is perhaps blocking earlier? Try this: Make sure you can go to a website (eg poker.com). Then change your web policy to block Gambling. Now go there. Do you get the correct block page?

Erick Jan · Answer

Hi Kramnai, 
 Thank you for reaching out to Sophos Community. 
 
 Kindly check the following configuration via PROTECT>WEB>User Notification>Message for Block Action

Also, see below post for additional reference 
 Customizing Block Message for Web

Sophos Firewall Blocking Page

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