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Questions tagged [windows-firewall]

Windows Firewall is a basic port filter built into Microsoft Windows, starting with Windows XP SP2.

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18 views

Firewall and VPN issue on Windows

I was looking for a basic firewall program for outbound blocking. The only feature I needed was a notification for any new outbound connection so I could choose to allow or block. The free "Windows ...
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32 views

Windows 10 Firewall - How to deny all outbound but allow only Windows updates?

Goals: Use only Windows 10 Firewall Block all outbound traffic by default Allow Windows 10 updates Limit which svchost services are allowed through My progress so far on a fresh install: Outbound ...
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1answer
29 views

How can I properly open ports for local traffic on a windows domain profile?

I'm trying to open port 23 on a windows firewall, specifically a domain profile. The purpose is to allow communication from computers A and B to computer C, all are on the same domain. When I open ...
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28 views

How to use Windows Firewall to block?

Can someone help me figure out how to use Windows 10 Firewall to block internet access of some programs? I have some portable apps and would like to understand how to block them from the internet. ...
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42 views

Win7 - Blocking an address with the firewall has no effect

I'm attempting to block an IP adress with netsh advfirewall firewall add rule name="BLOCKED IP" interface=any dir=in action=block remoteip=<ip_address> But then I can ping the IP address and ...
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2answers
35 views

Windows 10 firewall allows apps “is already in the list of exceptions”

On Windows 10 I've installed an app which needs access to the internet. Windows does not ask for a firewall exception like it usually does when I first run an app. When I go to the firewall's "Allow ...
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36 views

How to properly diagnose Windows 10 pro firewall not functioning

Ok, macOS / Linux native here on Windows territory and a bit lost. I'm helping a family friend upgrade to Windows 10. He has a company laptop that he was allowed to keep after his retirement. It had ...
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17 views

Windows firewall with advanced security connection rule not working with IPSec

We just setup a DMZ at a new client to host a RODC and SCCM server for internet client connectivity. We created a GPO with the needed WFAS connection rules to secure communication from the internal ...
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52 views

(Windows 10) How to make the firewall reload the config from registry?

After changing some firewall rules in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules they show up in the wf.msc under "Inboud Rules", but in "...
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1answer
44 views

How to block all traffic on Win10 except for 2 programs

I have win10 Pro on a offline computer. I have a Synology NAS. So, I have the internet cable plugged in and have everything except for port 5000 (the NAS) disabled. Therefor no internet, no ...
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1answer
216 views

Miracast connection error after joining ad domain

I have a situation where a laptop always ends up have a connection error when trying to establish a screen share using Miracast. Shockingly this phenomenon began right after joining the lenovo laptop ...
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144 views

Connect from Android to Win10 localhost, without disabling firewall

I have angular app running on my laptop's localhost:4200. I'm using ng serve --host 0.0.0.0 on my computer, and then on Android browser navigating to <local ip adress>:4200. Everytime I want to ...
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125 views

How can I stop Microsoft from sending me unwanted data?

Im on a metered connection which is fairly slow during the day (faster at night) and my limit is 50GB/month. I recently did a fresh install of Windows 10 Pro and Im constantly getting data sent from ...
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1answer
141 views

Windows 10 firewall blocking all LAN traffic

I don't know when or how this happened, but the first time I noticed there was a problem was when I could no longer check my modem status page at http://192.168.100.1 - it immediately returns a your ...
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1answer
192 views

CMD Prompt: Allow/Block a SERVICE in Windows Firewall… how to?

Does anyone know the Command Prompt syntax to Allow/Block a Windows Service in Windows Firewall? Research hasn't turned up a certain answer, even from Microsoft's official site. Specifying services ...
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1answer
231 views

vpn client can not connect to hosts over the vpn server

The goal is to provide connection from external notebook to the local hosts via Internet as they are in the same local network. All machines's OS = Windows 10 Hosts (static IP 192.168.137.X) are few ...
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0answers
67 views

Windows 7 Firewall outbound allow rule for CryptSvc not matching

I am using Windows 7 firewall with outbound filtering enabled. Windows Firewall does not provide an UI for new outbound connection prompts, it just blocks them. Windows Firewall Control solves this ...
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374 views

Letting Windows Subsystem for Linux through the Windows Firewall

I'm using Windows Subsystem for Linux with Debian on Windows 10. I'm using the Windows Firewall. I am using the setting "Outbound connections that do not match a rule are blocked" because I value ...
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2answers
938 views

Windows 10 Private Firewall Blocks All Internet Traffic

I experience an interesting issue lately. Sometimes when I turn on my desktop PC (Windows 10 Pro 64 bit v1803) I have no internet connection. After some searching I realized Windows' Private ...
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0answers
20 views

How to allow only a single application to accept inbound network connections on Windows 10?

I am running Windows 10 Pro 1803 64 bit, and I have an application which I want to accept incoming connections on the LAN only (the computer and the other device are connected to the same internal ...
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0answers
2k views

A way to stop MpsSvc (Windows Firewall) service in Windows 10

Is there actually a way to stop MpsSvc.exe service in Windows 10 without a reboot? I can stop the service neither via UI nor via cmd. For now, I only know a method when you set the startup type to "...
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285 views

How to test Windows Firewall rules?

My windows event viewer shows 58.222.20.18 tries to log into my machine. I believe my Windows Firewall should have blocked 58.222.20.18. However, my firewall has hundreds of rules, it's infeasible to ...
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1answer
54 views

Get NICs interfacetype

When using Windows Firewall, one can specify an interfacetype for its rules, using the possible values lan, wireless or ras. The problem is that Windows sometimes gets this classification wrong: An ...
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1answer
145 views

Add firewall rule while Windows Firewall service is disabled

While Windows Firewall service is disabled trying to apply this ↓ command netsh advfirewall firewall add rule name="My App (HTTP-In)" dir=in action=allow protocol=TCP localport=1234 remoteip=...
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1answer
243 views

32-bit ODBC32 system DSN on Windows 10 apparently not able to access network

I have an application which runs correctly on most of my machines here. Two of them stopped working for no reason that I could fathom (same updates as all the others, same network settings, same ...
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1answer
317 views

Connecting to a postgresql instance running on VirtualBox

I have a VirtualBox VM running locally that has postgresql 9.6 installed on Windows 10. I am able to connect to the instance with pgadmin on the virtual machine. I am trying to connect to that same ...
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0answers
613 views

How to use Windows WSL to configure routing? Is this possible?

I noticed that IP forwarding appears to be enabled in WSL (Windows 10pro 1709), according to sysctl. I'm hoping I can use this to make a software router on WSL -- to play with Hyper-V VM traffic on ...
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1answer
656 views

Firewall allowed app still blocked in Windows 10 x64 Pro

I have created a rule to allow portable Free Download Manager on D:\ , yet it doesn't connect. I'm running Windows 10 Firewall Control, also portable, and it's showing FDM blocked alerts from FDM: '...
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0answers
42 views

Adding firewall rule with .reg file

I created a rule to block PotPlayer from connecting to specific ip addresses (it's servers). It worked great so I made a .reg file to share it, but I had to test it to see if it worked. I ran it ...
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44 views

Can't find most of my games in Windows Firewall

So a couple days ago i was in the Advance options (Windows Defender Firewall With Advance Security) and was trying to allow a port for a game in the inbound rules, but when i closed this and opened it ...
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0answers
296 views

Windows Firewall drops RPC Packets based on strange rule

I tried to register Scheduled Task using RPC TaskScheduler interface (86D35949-83C9-4044-B424-DB363231FD0C version 1.0). It works in a DC , but doesn't work in a server. Debugging further , I ...
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1answer
126 views

Windows 7 Firewall: Add ESP8266 Access Point to trusted networks, how?

Windows 7 Firewall: Add ESP8266 Access Point to trusted networks, how? I made an Access Point (Ad Hoc) device with an ESP2866 that Windows needs to connect to (Wireless, WiFi). I tried several other ...
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69 views

Understanding broadcast addresses with Windows 10 (LTSB) firewall

I have an application running in windows, this application communicates with several machines that are hardwired to the Windows 10 machine running the app. I am trying to create a custom Windows ...
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0answers
117 views

Prevent blocked Apps from bypassing Firewall through VPN

I have a big problem where before using a VPN I had Windows Firewall Control app prevent certain apps from accessing the internet. It used the windows firewall and blocked all access that I didn't ...
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1answer
266 views

Windows Server 2012 R2 Firewall Rules

I have a Windows Server 2012 R2 that has a FileZilla Server in the IP (212.166.78.203) that I get from https://www.whatismyip.com/ I can access to this FTPServer from my computer, but not from another ...
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1answer
438 views

Disable outbound DHCP option code 252 in Windows

Reading https://googleprojectzero.blogspot.hu/2017/12/apacolypse-now-exploiting-windows-10-in_18.html it seems like it's a very good idea to disable this. Quite obviously, though, I can't find ...
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599 views

Windows 10 firewall with Wamp

I'm running Wamp 3 on my Windows 10 machine and would like to know if there is a way to let external traffic through the firewall to the server? My current solution when I want to use my cellphone to ...
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1answer
490 views

Can we turn off firewall rules for IPv6 on Windows Server 2012 R2?

By default (fresh installation) of Windows Server 2012 R2, I saw that there are several windows firewall rules which contains ICMPv6-In and ICMPv6-Out. Is it ok for us to turn off these firewall ...
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1answer
135 views

One website inaccessible on only one computer

My wife's Win 7 computer is suddenly unable to connect with one web site (no problem with any other site). Web site: https://fepblue.org downforeveryoneorjustme.com shows no problem with the site. I ...
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1answer
60 views

How to allow all traffic to 1 IP address

I installed a firewallrule on a Windows 7 System: netsh advfirewall firewall add rule name="BLOCK myProgram" dir=out program="%ProgramFiles%\myProgram\run.exe" enable=yes profile=any action=block ...
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votes
1answer
90 views

How does the windows DNS resolver hurt VPN software?

I recently came across the following article: https://medium.com/@ValdikSS/beware-of-windows-10-dns-resolver-and-dns-leaks-5bc5bfb4e3f1 This article explains that: Windows 10 DNS resolver sends ...
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0answers
203 views

Path to executable in Windows Firewall rule contains random number after colon

When I run an executable located on Storage Spaces disk that requires incoming network connections, the Windows firewall incorrectly determines the full executable path. the actual path is M:\sw\test....
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2answers
7k views

After Windows 10 Fall Creators Update, a svchost.exe instance is constantly using CPU time

Since installing the Windows 10 Fall Creators Update, I have a svchost.exe process that is constantly using about 14​ % of CPU time: This svchost.exe instance is responsible for hosting three ...
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0answers
32 views

Most kinds of traffic blocked while in VPN

Important: This problem is specific to one computer. The VPN works fine for a wide variety of users and devices. I have other Windows 10 machines in my home that work with this VPN, plus Android and ...
3
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2answers
3k views

Disable Windows Firewall Without Admin Rights

I need to disable the Windows 8.1 firewall but I don't have administrative rights. How can this be done?
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1answer
150 views

Windows Firewall whitelisting applications

I'm having a few difficulties setting up my office computers. I am trying to block all programs from accessing the internet, with a few exceptions: 1) Web browsers should be able to access only a ...
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1answer
240 views

Can't establish FTP connection outside network

I'm unable to make a connection with my FTP server running in one Windows 7 computer. My NAT router has the 5000-5100 and 21 ports open, I have my external IP Address, FTP in LAN is up, already tested ...
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3answers
4k views

“netsh advfirewall firewall delete rule name program” syntax not work

not work: netsh advfirewall firewall delete rule program="C\Program Files (x86)\utorrent\uTorrent.exe" not work: netsh advfirewall firewall delete rule name=program="C\Program Files (x86)\utorrent\...
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0answers
65 views

Better way to manage Windows Firewall - more than 2 profiles/rulesets, and setting scopes on traffic, simpler than advanced firewall UI?

I don't really find the standard profiles for a non-domain PC very helpful or well suited to my needs. But the only alternative I know is to set hundreds of rules in "Advanced Firewall". I'm hoping ...
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1answer
904 views

Added Windows firewall rule to block IP, but ping still works

I wanted to block all in/out connections to a remote IP using netsh: netsh advfirewall firewall add rule name="OUT RULE" dir=out interface=any action=block remoteip=<remoteIP>/32 netsh ...