http traffic not coming through

Hi,

I have a very odd issue with my UTM.

I've noticed this issue before but it went away somehow coming back today:

from time to time (about every 30 Minutes) websurfing is not possible anymore for a few minutes (5-10). Whenever that happens I see a lot of bandwidth beeing used to download something from "sophos content filter framework" in the flow monitor.

Until now it has already produced traffic of about 15 GB and I see this in my Network usage:


I have restarted the webproxy a few times now, changed the Content filter database to "mem", changed AV-Scanning to "single" and it seems gone.

Any ideas what caused this?

Cheers
Chris

Attached Images

traffic.PNG (42.7 KB)