Except url from web filter and application control

Hello, it is hard to tell. Visit that facebook page and check security events in Log & Report tab. By that you can tell, which security profile is blocking your traffic. I would guess, that you need to make exception in App control aswell. 

Hi, 

In this case-:

1. Please do the test from one source ip.

2. So now as its still blocks you, please go to your UTM logs (web filter logs and application logs).

3. In both the logs tab, filter for your specific source ip and check if you are able to see any logs for Facebook as destination.

4. double click on that log it should show you details like which policy its hitting.

5. If still you are not able to see, then please use below commands on CLI to check what policy the source ip is hitting so you can see if that policy is blocking or not-:
dia sys session filter src x.x.x.x (source ip)
dia sys session list | grep policy_id

6. If still you are not able to find out the error. i would suggest opening a ticket with TAC team so one engineer can help you remotely.