I as gamer have some concerns you know there are people on Online game communites/servers that try to attack ( so called DDoS ) you after they lose or semething like that, my friend got Kaspersky and it got a Network attack blocker feature in it not sure what it does but it might be related to what i'm worried about..
I have tried using third-party firewall with F-Secure SAFE. It was fancy, but my reasons for using this set up were very conditionally Firewall related things (or very advanced features). Modern Windows Firewall (and in general, Windows Security options) provides a sufficient set of tools and capabilities. In part it is even more reliable than a third-party product (for home use).
That is, in principle, it performs the main responsibilities of the Firewall - to block or filter incoming connections (inbound traffic). And it provides the ability to create rules or a set of rules for filtering / blocking outgoing connections and, in general, more precise configuration against some type of threat. And mostly it works silently. Compatible with most common and usual things (to avoid troubles with general use).
To all this, it is possible to add that most often home users will be behind NAT. And some layers of protection are already taken over by your ISP. Whereas, for example, it is possible to customize something on your router in addition (for example).
In general, I can imagine the strengths and features of the approach, but I think that Windows / F-Secure functionality can also be with some things around, which are partially or completely transferred to a different level of threat understanding.
I use the rebranded version of f-secure safe from my ISP , i have tried to install Comodo Firewall and also Zonealarm free alongside f-secure , but they do not get along , to many conflicts. Nowadays I run a debloated windows 10 system ( done by scripts ) and block as much of the telemetry as I can with o&o shutup 10. besides that I deinstalled / removed all of the preinstalled window apps ( junk ) disabled edge and defender alltogether. I do run windows firewall tough wich got a lot of lolbins added by running the Hard_Configurator tool , which also hardens critical / sensitive windows settings. I also run Hitman Pro Alert belongsides that as a layered approach.
Third party firewall will not protect any form of DDOS attacks as far as i know. You can try the registry hack on your windows but that too will not help to prevent any DDOS attacks. Your wifi router too will not help. But first you need to update your wifi router firmware. Check to see if they have any feature that has DOS protection. If the DDOS attack are so severe you need to check with your ISP. Some of the culprits are using virus to attack your computer while gaming to launch an attack to your computer. If you gaming, even if you make use of VPN your network bandwidth will degrade and will hamper your network connection to a slow down. Some smart kid are building their own linux firewall router and connected to their network to prevent any form of attacks. They knew that Windows operating system will not protect them with such attacks. I do not know whether ASUS Wifi router will built-in antivirus can stop this form of attacks. if you know that such network can cause havoc to your computer and your network, then why gaming in that place.
If that still does not work. Check your task manager see if there is any programs still goes undetected. And if detected submit that malicious programs that infected to your computer F-Secure for analysis. -secure.com/en/business/support-and-downloads/submit-a-sample
There are programs that can stop ddos attack. Such as Anti-DDOS Guardian. But I do not recommend to install it in your computer if any of you guys here in the forum have use it. I have check that free download with Virustotal.
Disable your Remote Assistant, Remote Desktop and SSH on Windows 10. Disable the service. Disable fire sharing,network sharing on your Windows Firewall rule. Disable the port number for Remote Desktop, Remote Assistant and SSH on windows firewall rule.
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