Re: Fortigate 30E 5.6 - can't access GUI, "httpsd" takes up 99% CPU
# fnsysctl killall httpsd
That would kill all of them. Then, if still escalates quickly before you can log on via GUI, a reboot is the next step. I don't know which 5.6 you're running, but you probably need to upgrade it to the latest. If it's 5.6.7 already, please open a case with TAC. It's likely a bug.