Connection Problem with Some Apps on Windows 11 Recently

[maxibillity]

So I'm having issues related to connection with some apps, especially the apps from Microsoft and Microsoft store like Microsoft 365, WhatsApp and also including some game launcher like Hoyoplay & Epic Games launcher, all of those apps can't connect to the internet recently. I figured out what causing the issue was monitoring of port 433 on my KIS which is it's not a problem before but now i need to disable it in order for the apps to be working again.

any solution of this as i'm having concern regarding disabling the monitoring of 443 port would cause any security risks in the future?

my KIS current version: 21.3.10.391 (m)

 

Thanks in advance.

[harlan4096]

Welcome to Kaspersky Community.

 

I would 1st try to migrate to the new product line:

 

 

Your KIS license will become in Kaspersky Standard, current last version 21.19b, coming soon 21.20.

[Md Shihabul Haque]

Hi maxibillity, Thank you very much for the info. It was frustrating searching the solution. Even disabling the protection doesn't work. But disabling the HTTPS 443 port works! Thanks again.

[harlan4096]

Disabling that port scanning it's not a good idea.

[Igor Kurzin]

@Md Shihabul Haque, yes, indeed, disabling 443 is good only as a temporary solution. If you provide more details (Kaspersky product version and problem description) we can help better.