Advice Request COMODO Firewall blocks "Windows operating system"

[TheMalwareMaster]

Good morning, COMODO Firewall keeps blocking this "Windows operating system". I checked the rules but it has one to allow all requests! What should I do? Thanks in advance. I tried to unlock the application but, after few second, it blocks it again

 

[ForgottenSeer 19494]

I'm on version 10.0.1.6294, so if you're not then first upgrade. Do you have these rules in your settings?

 

[ForgottenSeer 19494]

Also

 

[TheMalwareMaster]

In Windows Updater applications one is missing. But I didn't edit the rules by myself. It's in file groups under file rating.
Is this the famous disappearing rule bug?

 

[TheMalwareMaster]

This is basically the same problem. I had "filter loopback connections enabled" but, after disabling it, nothing changed
Q&A - Comodo Firewall blocking network access to Windows services and OS?

 

[TheMalwareMaster]

Any idea?

 

[Evjl's Rain]

uncheck this option

 

[ForgottenSeer 19494]

About the missing file, it is because i have a 64-bit Windows and you are maybe using 32-bit. I have no idea, you might try to repair Comodo Firewall. But if your real problem is other than not being able to access the internet, i don't think ARP blocking is a problem. Unless DHCP doesn't work and you don't have set manually IP address.
I also have this in my logs.

 

[TheMalwareMaster]

uncheck this option
View attachment 165855

Thanks man that worked! But, what is essentially blocked with ARP?

 

[TheMalwareMaster]

About the missing file, it is because i have a 64-bit Windows and you are maybe using 32-bit. I have no idea, you might try to repair Comodo Firewall. But if your real problem is other than not being able to access the internet, i don't think ARP blocking is a problem. Unless DHCP doesn't work and you don't have set manually IP address.
I also have this in my logs.
View attachment 165856

Using 64-bit too

 

[Hector1]

Simply use CS setting and do not play with other setting

 

[TheMalwareMaster]

If I let the ARP on, there will be issues or not? I don't see any problem when using my PC, just all these requests blocked

 

[ForgottenSeer 19494]

Address Resolution Protocol - is about linking IP addresses to MAC addresses. There shouldn't be any issues with this setting turned on.

 

[TheMalwareMaster]

Address Resolution Protocol - is about linking IP addresses to MAC addresses. There shouldn't be any issues with this setting turned on.

Is it needed for something or not?

 

[Evjl's Rain]

COMODO - Anti-ARP spoofing attack - What is it?
to prevent netcut

 

[TheMalwareMaster]

Thanks guys

 

[TheMalwareMaster]

Why do I have all these blocked requests, in the end?

 

[shmu26]

Assuming you have firewall at reasonable settings, you can probably solve the problem by putting firewall in learning mode for a couple reboots.

 

[shmu26]

I know this is an old thread, but the issue is still very relevant.
There is an interesting discussion about it on the Comodo forum:

CIS - Firewall blocks the "Windows Operating System" in Windows 10. - Firewall Help - CIS

CIS - Firewall blocks the "Windows Operating System" in Windows 10. - Firewall Help - CIS

forums.comodo.com

The main point I understood from the discussion over there is that in most cases, this is not a cause for worry. Sometimes, a network connection gets "fragmented" and Comodo firewall blocks it for security reasons.

 

[TheMalwareMaster]

Yeah, this is an old thread. I do no longer use COMODO on my systems because I prefer to harden windows with registry tweaks (it doesn't affect the performance of my computer), however I remeber that when ARP was enabled it was continously blocking these kind of requests on a clean system. I read the thread on COMODO forums and I also had the problem of being unable to use WPA2 enterprise networks with ARP enabled