Question
Slow internet page loading 5.4.1 (possible botnet detection issue)
Users complained about slow internet page loads.
DNS lookups looked fine, ping replys all good.
Users on a specific subnet had this issue, only difference was botnet detection was turned on for that interface.
Looks like the page started its initial load, but adverts were very slow to load...which in turn would not let the page load as normal.
Botnet detection was set to block, but it was unable to to update for some reason despite the fact that the fortiguard services were up to date with a valid subscription.
We suspect this caused slow lookup / IP validation for ad services and caused the internet pages to load like 28K dialup
