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Conntrack: when >3000 things get slow...but plenty of bandwidth

So, this all started when I came across the problem of google docs not loading, while other pages would load just fine.  Then it evolved into some pages not loading (timing out almost) while others would load.  I can do a speed test and get great results.  We are on a 180 Mbit down, 30 Up.

 

When I do sudo conntrack -C, I notice that when the number is below 3000, things are running pretty good, but when it goes above that (like now, it's at 5000+), not so good.  My students really notice it with Google docs not connecting but other pages working fine (this is mainly on their chromebooks).

 

We have 80 students and about 40 faculty that live on campus.  Streaming seems to be fine when loading pages isn't.

 

I did the below, it did not help.  Ideas? (also, offloading is all turned off)

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