Download speed half of expected through FortiGate 60F
I read several threads with similar or related issues, but the threads are several years old.
AT&T just installed 1G fiber in our office. If I connect my laptop directly to the AT&T gateway and do a speed test at speedtest.net, I see 900/900M. If I connect the same laptop to the Fortinet, I see 450/900M. Fortinet support has reviewed the (very basic) 60F config in detail and cannot find anything in the config that should affect the download speed. We've checked speed, duplex, MTU, policies, and even tried different ports to rule out hardware failure.
In one of the older threads on this forum, someone said to use fast.com (and increase the number of parallel connections) instead of speedtest.net. I'm not onsite to try this, but could this really be the issue? Does anyone have experience with this?