Meraki Firewall not blocking sites in a Computer Suite

[Slarty66]

We are experiencing a strange problem with one of our IT computer rooms with our Meraki Firewall not blocking websites that are blocked in other rooms.

Looking at the Event logs the computers are showing that the firewall is blocking website in layer 7 games but students are still able to get to these sites.

We have Senso as well and we did wonder if this is clashing with the settings in the Firewall but as we only set that to Logging and not blocking we don't think it's that.

All the Vlans are exactly the same as other computers in the academy, we have a student policy that we have our blocked wesbites.

But no matter what we do this room just wont block any website apart from You tube which is set in the restricted you tube option.

Although it is only 8 computers it is in the SEN area and although they have T.A.'s with them they want a lot of the internet locked down.

We have contacted Meraki and Senso and both can't figure out what is causing this problem.

 

[tom_newton]

If the traffic is being full proxied somewhere, then DNS could be going somewhere non-meraki... or if DoH is set in browser? 

[Slarty66]

18 hours ago, tom_newton said:

If the traffic is being full proxied somewhere, then DNS could be going somewhere non-meraki... or if DoH is set in browser? 

Looks like its a DNS problem. We are investigating it now with an engineer.

Thank you for pointing us in the right direction.

[tom_newton]