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IPS is killing my WAN Speed

Hey everyone,

for quite some time now, I search for whatever limits my WAN connection.

I use a Sophos UTM9 on a Intel D2500CCE mainboard, which is...not overwhelming but it's enough to run and operate Sophos UTM.

I have network over cable with 100 Mbit/s down and 5 Mbit/s up.
However, when I made some speed tests downloading Debian DVD ISOs, I never exceeded the 25 Mbit/s threshold. So I disabled the UTM features one by one and voila, after I disabled the IPS completely, my download speed skyrocketed and almost reached the 100 Mbit/s.

So I wonder:

Is my hardware undersized or is there some other "hidden switch" I have to activate to have both speed and IPS?

Thank you in advance.

Kind Regards

ZeroEnna


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Parents
  • IPS performance is CPU-bound; if you have a slower CPU, or a low amount of RAM, these results would be typical.

    CTO, Convergent Information Security Solutions, LLC

    https://www.convergesecurity.com

    Advice given as posted on this forum does not construe a support relationship or other relationship with Convergent Information Security Solutions, LLC or its subsidiaries.  Use the advice given at your own risk.

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  • IPS performance is CPU-bound; if you have a slower CPU, or a low amount of RAM, these results would be typical.

    CTO, Convergent Information Security Solutions, LLC

    https://www.convergesecurity.com

    Advice given as posted on this forum does not construe a support relationship or other relationship with Convergent Information Security Solutions, LLC or its subsidiaries.  Use the advice given at your own risk.

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