Kaspersky
Question

Dramatic internet speed decrease after KTS 2019 install [UN-CROSS-POSTED]


Userlevel 1
I reimaged my system recently and measured my internet speed on a complete clean system. My ISP declared my fiber to deliver 500 Mbps and I can get even more - 510-530 Mbps.

My OS: Windows 10 Pro x64 1809,
My KTS: 19.0.0.1088 (d)

Unfortunately right after KTS install I'm getting only 80-120 Mbps speed! Nothing else has been modified in the OS, just KTS installed. When I exit KTS and re-measure, I'm getting up to 300 Mbps. It's still far from the full throughput, but much better.

Anyway, it seems clear it's KTS that obstructs the network, however I have no idea how. I've already disabled all (or most) of the settings that might have impacted traffic speed:
  • injecting javascript to screen pages
  • limiting traffic at metered connections
  • screening encrypted connections
  • auto-detecting proxy
None of those settings has improved my connection speed at all. Does anyone has any ideas what else can be tried?

I remember I did the same test few months back with KTS 2018 and even though the network speed got a bit down (by say 10%) there was no such disaster as with KTS 2019. I'm really thinking on switching into some other security provider...

39 replies

Userlevel 7
Badge +6
I've tried that 1GB download test with KTS2020 20.0.14.1085 (the last RC, that last week has been signed to TR, so will be the final)...

My connection: optical fiber 100 MBits/s (symmetric).

I've used FireFox 66.0.2 (x64), and, except for a few seconds that went down to about 7,4MBytes/s, it remained most of the time in 9'2MBytes/s ~ 10MBytes/s...

But it's true that in previous builds K2017 ~ K2018 I know users from others forums that complained because Kaspersky cut down their connections of more than 500MB and They never got speeds near 500MB even in direct downloads, so the Kaspersky issue should be tested with higher speed connections...
Userlevel 7
Badge +3
Hello mikolajek,

I collected more than a few contemporaneous posts and replies that were cross posted in two different topic threads at almost the same time. Please help prevent chaos. Please do not cross post same issue in multiple topic threads.
Userlevel 1
Thanks for confirming this, @harlan4096!

This may be indeed a case of higher-speed connections. The mentioned test with KTS 2018 made early 2018 was done when my connection speed was 256 Mbps and I got it upgraded in mid-2018.

Anyway, it's another corroborative item suggesting something is wrong with KTS itself 😐,,,
Userlevel 7
Badge +8

Hello @MisplacdTxn,

Thank you for replying:ok_hand_tone3:

As per Kaspersky latest advice, for version 20.0.14.1085 patch H , quote  “We've further optimized the use of computer resources.”

Please do the following:

  1. Confirm Kaspersky Security Cloud requirements?
  2. Check all Windows updates have a “successfully applied” status?
  3. Check the router/modem/network device’s firmware is up-to-date?
  4. Check Software compatibility, just to ensure there’s no conflicts?
  5. Clean-up of C:\Windows\Temp & C:\Users\YOURNAME\AppData\Local.
  6. Uninstall & reinstall Kaspersky Security Cloud, making sure to fully shutdown & restart the device between each procedure. 

If the issue persists, the best course of action, if Kaspersky Security Cloud is licensed, is to raise a request with Kaspersky Technical Support, they will require a GSI & Windows Logs & they will request Traces, captured as the issue is replicated. The Support Team will provide the correct steps to capture the Traces. 

After logging the request, you’ll receive an automated email with an INC+12digits reference #, then, normally within 5 business days, a Kaspersky Technical Support human will contact you, also by email; you can continue to communicate with them via email or by updating the INC in your MyKaspersky account.

Please let us know what they say?

Thank you:pray_tone3:

Flood:whale:

Resources:

Kaspersky Security Cloud 20, "other" errors

 

Userlevel 7
Badge +6
Try with "Upload files" button -> an arrow up...
Userlevel 7
Badge +6
@mikolajek: it seems I have this feature because I'm Mod, but standard users don't have it...
Userlevel 7
Badge +8
@mikolajek new patches are delivered to all users gradually - over several days. To install the patch, run the update. When finished, restart the computer. If the patch did not come, wait until it is available to you.
Userlevel 7
Badge +2
Okay @mikolajek, now Kaspersky experts will now look at it and get back to you.
Thanks
Userlevel 1
Hey everyone try this if you are having a speed drop

Kaspersky software > Settings > Additional > Network > Limited traffic on metered connections > Untick.

Also if this has not fully fixed it and your not using a proxy server etc:

Kaspersky software > Settings > Additional > Network > Proxy server settings > Do not use proxy server > Untick > Save,

I have the same issue with KIS 20.0.14.1085 j with 1 gbit fiber.

It is obvious that KIS affects the speed. If  I exit KIS speed returns to 1 gbit. I measured with speedtest console app in Windows 7.

I tried whatever suggested in this post. No luck.

Any feedback from Kaspersky on this matter?

Have same problem, but issue with windows 10 x64 may update.

After update, KIS 20.0.14.1085(k) limit all download speed on my wifi is 2mp/s.

Exit KIS, my download return max speed is 6mb/s.

Userlevel 7
Badge +8

Hello @Ronald.Johnson.55

Welcome!

  1. Did the issue pre-exist patch J?

Please let us know what they say?

Thank you:pray_tone3:

Flood:whale:

Did this ever get worked out?  

 

Userlevel 7
Badge +8

Hello @MisplacdTxn
Welcome!

Are you reporting the same issue as @mikolajek ?

Please let us know the details? 

Thank you:pray_tone3:

Flood:whale:

Userlevel 7
Badge +8
Hi, @mikolajek

After you install a Kaspersky Lab product, your Internet connection may get slower according to some measurement apps or websites.

All Internet traffic goes through the Kaspersky Lab product's filter, and its work can be misinterpreted when measuring traffic download or upload speed.

To measure the real Internet connection speed, try downloading a file bigger than 1000 MB using either a download manager or a torrent client. Internet connection speed also depends on the Internet channel load and node location. If Internet connection speed is slower than it should be, try testing your Internet connection on different websites in different time of the day.

If the measurements still show slow Internet connection speed, please create a request to Kaspersky Lab Technical Support via My Kaspersky. Describe your problem in all details and attach screenshots showing Internet speed decrease. For information on how to use My Kaspersky, please refer to the Online Help page.
Userlevel 7
Badge +8
In Windows 10, the Kaspersky Anti-Virus NDIS Filter driver is hidden, and it is impossible to check whether it is installed or not., as well as to delete it.
Try to find the problem component Kaspersky Total Security by disconnected them one by one.
Userlevel 7
Badge +8
As I wrote above, you need to compare the download time for one large file (1000 MB and above) with the antivirus turned on and the antivirus turned off using the downloaded manager or torrent client.
Userlevel 7
Badge +8
Good day, @mikolajek
Enter here the number of your appeal to support
By the way, the patch E was recently released, there should be changes that affect the speed of the Internet connection, try installing it: https://support.kaspersky.com/13877#block1
Userlevel 7
Badge +8
@mikolajek is it so bad?
In 2020, the version promised the opposite to improve this moment.
Maybe the problem is in the old settings Kaspersky Total Security ?
Userlevel 7
Badge +8
Good day, @mikolajek
Any news on your problem with internet connection speed?
Userlevel 7
Badge +2
Hi, as well as all the above posts.
Please add a GSI Log with your report.
https://support.kaspersky.com/3632#block7
Userlevel 7
Badge +2
Okay you could be missing upload.
This forum platform is new and we are still learning to use it.
Put zip in below URL.
Copy and paste easy read link back here.
https://www.getsysteminfo.com/
Userlevel 7
Badge +2
I agree with Bean Slappers, maybe check with your IP Providers and get them to check your connection and speed to Router.
We seem to have no issues with internet speed with Kaspersky Internet Security 2019 installed on all home computers.
Userlevel 1
That is really strange, because I personally have 1Gbps fiber, and I am not having problems with it.

Have you rebooted your router?

What is your system specs?
Userlevel 1
Sunmit a ticket to tech support, because it shouldn't be happening to that extent.

Another though have you asked your ISP about the speed drop?

But as I said before it shouldn't be that bad of a drop.

Reply / Ответить