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Sophos UTM 9.4 - With IPS turned on gets only 1/2 of Total Internet Bandwidth ???

DavidBowman

Sophos UTM 9.4 - With IPS turned on gets only 1/2 of Total Internet Bandwidth ???

I have installed Sophos UTM 9.4 on the latest APU2C4 with 1Ghz Quad Cores with 4Gig DDR 3 Ram

When I turn on IPS, I get only Half the total internet bandwidth which is exactly 50Mbps 

When I turn off IPS, I get the Full 100Mbps total internet bandwidth

May I please kindly ask if there is anything I can do to be able to Turn On the IPS and still get Full Internet bandwidth at 100Mbps ?

And it seems like its a software issue and not a hard ware issue ... 

The reason being ... if I turn on IPS but "Un-Check" all the IPS Rules, I still get half the full internet bandwidth ???

Why is this so ?

I mean IPS is on but there is not even 1 IPS rule to process and I get half the internet bandwidth 

Secondly ... why is it a round figure ???  from 100 mbps to a 50 mbps ??? which is exactly half ???

If it is a hardware issue ... and meaning that I do not have a fast enough CPU ... it should not be 1/2 the bandwidth ... 

It would be a figure like 60 or 70 or 80mbps ... how come it is a straight 50 mbps ... or "EXACTLY HALF" ???

I have read on the internet of folks who have core i3 and i5 and with 8 gig ram ... and these folks too get exactly half their total internet bandwidth ... again a round figure ->>> "Exactly Half"

Now this is very odd ... it should not be this case ... 

something is wrong with the IPS module ...



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    Create an IPS exception for LAN to ANY and see if that helps.  Unless you're concerned about some internal machine or device trying to attack outwards this should be fine and at least in my experience you take a smaller hit performance wise.

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    Create an IPS exception for LAN to ANY and see if that helps.  Unless you're concerned about some internal machine or device trying to attack outwards this should be fine and at least in my experience you take a smaller hit performance wise.

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