How to keep my Webfiltering enabled even if my computer is not connected to the corporate network

Question

Hello eveyone, 
 I'm using Sophos UTM 9 SG210 as a Firewall and Sophos Endpoint Security and Control as antivirus in my computers, when I'm connected to the corporate network the Web Filtering is working blocking sites that we consider as forbidden in the company, such as (Facebook, youtube, Streaming sites, etc ...), but when the computer is unplugged from the company network and connected to internet via public WiFi you can access these sites normally . and this is our problem we want to block those sites even if we are not in the company network. 
 can someone give me some tips on how to do this ? 
 Thank you in advance.

Louis-M · Accepted Answer

Are you using Sophos enterprise console? With that, you apply the UTM policy for when the endpoint can't detect a client like a internal dc, dns server. Once it loses connectivity, the endpoint starts to use the UTM policy. It's quite a nifty little feature actually and works well with all of our clients.

giomoda · Answer

Hey hicham. 
 As Louis said, if your are using SEC (on premisse version of Sophos Endpoint), check https://community.sophos.com/kb/en-us/120375 on how to integrate SEC's Web Control policy with Sophos UTM. It has some caveats, but it works. 
 If you are using Sophos Cloud, however, you have no such feature. 
 Regards, 
 Giovani

giomoda · Answer

Hey Hicham. 
 Check https://community.sophos.com/kb/en-us/120971 . 
 Regards, 
 Giovani