We've upgraded to FortiOS 6 on 4/27. We are seeing a strange bug where random sites will be blocked. The FortiGate will present a FortiGuard web filter block screen with no category. I found the following message in the web filter logs for each of the blocked sites. I haven't configured any URL filter lists; especially ones that include blocking of our major customers' sites.
I did find that refreshing the screen would load the site. I'm assuming this is a bug. I've submitted a ticket to FortiNet and they are "researching" the problem.
The sites being blocked are random. There is absolutely no URL filter in that policy, nor any other policy. I haven't used that feature. I especially wouldn't create a URL filter that blocks access to our customer portals. The second post also shows that Fortinet's support site was blocked as well.
I'm sorry, I'm new to Fortinet and don't know what do to run diag debug flow. I mean I can run the command, but the sites being blocked are random and at random times.
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