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500 MBPS point to point

We have a 500 MBPS point to point that runs from our main office to our backup site. We have been struggling for a while now trying to figure out why we can only get 60 MBPS out of it. We have had Spectrum test the line several time and everytime they show it is running 500 MBPS.

We have forced the duplex on the firewall and nothing.

We have tested with 2 laptops and we get the same results using iperf.

We are looking for some ideas on where to go next.

Thanks!

Dave

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0 Amodin over 2 years ago

First thing I would try would be to disable IPS, reboot the UTM and see if that brings your speed back.

IPS is well known to limit bandwidth. It's a good tool, but its performance is utter garbage.

OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
(Former Sophos UTM Veteran, Former XG Rookie)
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0 David Haven over 2 years ago in reply to Amodin

Thanks Amodin, We have had the IPS off for the lifetime of the UTM.

Dave
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0 Amodin over 2 years ago in reply to David Haven

Have you checked with your ISP to make sure they don't have any limitations in place? I know you said they show it at max, but they will not take into account any limiters in place between you and them. They just test their core equipment.

OPNSense 64-bit | Intel Xeon 4-core v3 1225 3.20Ghz
16GB Memory | 500GB SSD HDD | ATT Fiber 1GB
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0 BAlfson over 2 years ago

Hey Dave,

What speeds do you get if you connect two laptops directly, leaving the UTMs out of the picture?

Cheers - Bob

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0 David Haven over 2 years ago in reply to BAlfson

Same speeds. working with Spectrum they are pointing towards out tcp window size.
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0 David Haven over 2 years ago in reply to David Haven

It has to be on the Spectrum side. If we connect directly to the spectrum equipment the problem still exists.
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