I have the MX100 white papers state this is a 750mb Router. although I can get speeds in the high 800's usually 850x850. Recently all my speeds went down to 350x350 and the only way to get back to my 800 ish speeds is to completely disable "Intrusion detection and prevention" I would like to know if anyone else has noticed recent slowdowns like maybe the Rules have changed. My MX100 should perform 650mb speeds with all Rules enabled but this is no longer the case. I even Tested another MX100 only to see similar results.
Running 17.6, When we got the 1gb service our speeds were fine for about a month, then I noticed the slowdown thinking it was ISP issue I had them come over and test, and it was not their side of things. took bit of time to figure out it was the rules, although they have been in place for year only recently it slow down my network.
I have tried every combination, currently, it's Prevention/Connectivity, I thought detection / balanced would help but the only way to get anything over 350x350 is to disable it. Even the White Paper KB says the router should do 650MB with all rules enabled. This is not the case for us here.
We are experiencing the same issue, except ours seems to have started with the upgrade to 16.15 (currently on 16.16.5 with no resolution)
When we disable Intrusion detection and prevention, speed tests show 1 - 1.2 Gbps. When it is enabled with any combination of settings, speed tests go down to around 350 x 350 Mbps. Previously IDP would have some minor effect, but we'd get in the 800 - 900 Mbps range.