Advice Request ERR_HTTP2_PROTOCOL_ERROR on particular sites

[superleeds27]

This seems to be affecting a few sites I visit. Anyone else had the same?

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Might have to look for an alternative if it continues to be an issue

 

[harlan4096]

I performed a preliminary test in my K.Plus 2021 21.5 RC (with Anti-Banner + Private Browsing modules disabled) + Mozilla FireFox, and I could access without any issues to all the sites reported in that thread in Kaspersky Community.

Let me some time, and later I will test also in my lap with KTS2021 MR3 (g)...

Did You check how many Kaspersky root certificates do You have installed in Your system?

Also check this: What to do if Kaspersky notifies about untrusted certificate or connection not protected | Kaspersky Community

 

[superleeds27]

I performed a preliminary test in my K.Plus 2021 21.5 RC (with Anti-Banner + Private Browsing modules disabled) + Mozilla FireFox, and I could access without any issues to all the sites reported in that thread in Kaspersky Community.

Let me some time, and later I will test also in my lap with KTS2021 MR3 (g)...

Did You check how many Kaspersky root certificates do You have installed in Your system?

Also check this: What to do if Kaspersky notifies about untrusted certificate or connection not protected | Kaspersky Community

The issue popped up out of nowhere and only affects a single site for me - that I know of.

The thread obviously shows more sites others have issues with.

Nothings changed in terms of config. Happens on all 5 machines here, including a new laptop/install yesterday.

They're looking into it, but still. 48 hours and nothing and this is the second time in a month it's happened

 

[Brahman]

This seems to be affecting a few sites I visit. Anyone else had the same?

Kaspersky Support Forum

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Might have to look for an alternative if it continues to be an issue

Try switching off the HTTPS filtering of Kaspersky.

 

[superleeds27]

Try switching off the HTTPS filtering of Kaspersky.

Like we're told not to do in that thread?

Keeping the option “Do not scan encrypted connections” enabled is not safe and not recommended.

 

[harlan4096]

OK, I tested in my KTS MR3(g) (Anti-Banner + Privacy Browsing on, but none of them blocking anything) and I could reproduce the error, or similar, in FireFox:

Failed secure connection An error occurred connecting to mapgenie.io. The page you are trying to view cannot be displayed because the authenticity of the received data could not be verified. Contact the website owners to inform them of this problem.

But after some tries it finally finished working fine and loading ok weird


And as I told in my 1st post, with upcoming Kaspersky Plus versions, now in 21.5 RC status, working fine since 1st time:

 

[harlan4096]

Ok, found something, after a system reboot I started to get again the issue, I did all the tests with this Kaspersky setting disabled:

I enabled this setting, closed the browser FF and open it again, and tacham! this time works fine the site.

This is how I have this setting in my systems:



These are my DNS in my W10:



And I have set this in my FF:

 

[harlan4096]

I have to add that in my K.Plus RC I also have that DoH enabled as shows:

 

[superleeds27]

So it's an issue with Kaspersky.

Whatever they did last time to fix it, it needs to be done again. Wonder if it was accidentally reverted?

 

[superleeds27]

Still an issue. Few more people have dropped comments on the original thread too.

Wonder what's actually causing this?

 

[harlan4096]

 

[superleeds27]

View attachment 263500

Yeah, I'd seen that. Was just wondering what's likely to have caused this issue. The fact it's been 5 days since it first happened. Seems a bit odd?

 

[superleeds27]

Any decent alternatives to Kaspersky?

 

[HarborFront]

No problem here using KIS

 

[superleeds27]

It's a weird one. Not sure what's causing it. Sites I had issues with where fine in the morning then not working by the afternoon.

Just found out it won't be fixed until 31st Jan - 14th Feb.

Surely this warrants an immediate fix

 

[superleeds27]

No, it does not

You've got a program that's causing issues to browsing experience. Your average Joe who has no idea how these things works, who loves Kaspersky because it's a set and forget and does it job in the background, is no longer working correctly.

How do they know, or how do they distinguish between a site that broken because of the AV and a site that's just broken?

How do they know there's an issue when there's nothing official, just a few lines in a forum post?

It's been a known issue apparently since December too.

 

[ForgottenSeer 93475]

This seems to be affecting a few sites I visit. Anyone else had the same?

Kaspersky Support Forum

Kaspersky forum where Kaspersky product users and experts share tips, advice, help and solutions in your preferred language

community.kaspersky.com

Might have to look for an alternative if it continues to be an issue

I'm having the same problem with Youtube
Quick fix Stop checking encrypted connections
Here thread in the Kaspersky community talking about the issue that appears to be fixed in the upcoming H patch

Kaspersky Support Forum

Kaspersky forum where Kaspersky product users and experts share tips, advice, help and solutions in your preferred language

community.kaspersky.com