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Home » GFI User Forums » Kerio Control » Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED (problem with internet speed after upgrade to 9.4.2.p1)
icon8.gif  Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED [message #153139] Sun, 20 November 2022 17:54 Go to next message
rednetkerio is currently offline  rednetkerio
Messages: 5
Registered: May 2010
Location: CZ, Pardubice
Hi there, today i was playing with new 9.4.2p1 and i discovered not very good thing about performance
my test setup
PC Engines APU.6B4 system board (GX-412TC quad core / 4GB / 3xGigabitLAN + 1x SFP/ Intel I211gigabit eth / Intel i210fiber

ISP A 300/20Mbit, B 100/10Mbit

clean installation 9.4.2p1 results A 200/20Mbit B 70/10Mbit
clean installation 9.3.6p1 results A 300/20Mbit B 100/10Mbit

reason why i started to test this was cause one of our customers was reconnected to ISP with 100/100 and i decided to upgrade to 9.4.2p1 but then i release this speed issue

can you please somebody test and replicate this issue? its like this new kernel cutting down perfomance in dwn about 30%...

Thank you for any info
tomorrow i will test it with much powerfull HW and i will upload results









Re: Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED [message #153140 is a reply to message #153139] Mon, 21 November 2022 02:04 Go to previous messageGo to next message
mzaidi is currently offline  mzaidi
Messages: 113
Registered: April 2021
Thank you for your message. For further assistance regarding the issue and troubleshooting, please reach out to the Kerio Control Technical support team by creating the support ticket on the Kerio control support portal: https://support.keriocontrol.gfi.com/
Re: Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED [message #153407 is a reply to message #153139] Fri, 23 December 2022 23:32 Go to previous messageGo to next message
sramekglobe is currently offline  sramekglobe
Messages: 2
Registered: March 2018
Hi, do you have any solution, please? I have to turn of filtering and antivirus. Sad

I tried below, did not help..

https://support.keriocontrol.gfi.com/hc/en-us/articles/82439 26263954-Fix-performance-after-upgrading-to-9-4-2-patch-1-by -disabling-GRO


Re: Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED [message #153598 is a reply to message #153407] Sat, 21 January 2023 14:09 Go to previous messageGo to next message
keriofan is currently offline  keriofan
Messages: 5
Registered: January 2023
I am trying to find an upgrade image for build 7243, to try out, as someone else has shared that the performance was blazing fast on that build compared to even the 9.3.x releases.

Anyone have a link to build 7243 upgrade image for testing purposes only?
Re: Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED [message #153639 is a reply to message #153598] Thu, 26 January 2023 16:54 Go to previous messageGo to next message
tverweij is currently offline  tverweij
Messages: 75
Registered: March 2010
Location: Curacao
I was that person.

After some tweeks, I now run without problems on the latest version.
First, make sure that application awareness is off - sorry to say, but this feature cripples the firewall.
Next, as I run it as an appliance on Hyper-V, turn on the nested virtualization for the appliance.

But I have to say that I never experienced problems with lines slower than 300 Mbit up and down. I use a NG100 myself on a 40Mbit line and that works perfect without any tweeks. Only faster lines (Gigabit internet) gave problems, and still do as long as IPS is on, but I understood they are working on that problem.
Re: Kerio Contorl 9.4.2p1 PERFORMANCE / SPEED [message #153651 is a reply to message #153639] Fri, 27 January 2023 11:28 Go to previous message
keriofan is currently offline  keriofan
Messages: 5
Registered: January 2023
Thanks @tverweij

I had to roll back to 9.3.6, something very strange going on with the wifi connections where RX packets just getting dropped on the latest release, exactly the same config, it seems there could be more issues with latest 9.4.2p1.
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