"Windows Firewall" refers to the built in client firewall utility that ships with the Windows operating system. (It was previously named the Internet Connection Firewall.) By default, all Windows operating systems since Windows XP and Windows Server 2003 have shipped with this client.

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296 views

Get-Process not working against remote Windows 7 clients

I have been trying to run Microsoft's GetNetworkStatistics script against remote computers to enable us to track what processes are using bandwidth along with other tools. I am unable to run the ...
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105 views

Windows 8 inbound IPsec authentication failing?

I am getting some very strange behavior out of the Windows 8 Advanced Firewall / IPsec implementation. It appears now that all inbound traffic that isn't return traffic from a previously contacted ...
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434 views

Firewall “Connection Security” when there is no trust and NATing between the two computers

First a little explanation of my network topology. I have a internal domain, and edge network domain. There is no trust between the two domains (and IT will not allow a one way trust to be set up ...
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28 views

Do new Windows firewall rules affect currently open connections?

If I added a rule to windows firewall that blocked an ip or port currently used by an open connection, does that rule take effect immediately or only after the connection were closed? I.e, If I have ...
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43 views

Windows Firewall Connection Security, require encryption with IPv6?

I've set up Windows Firewall on a Server 2012 R2 to always require IPSec Encryption for all Connection Security Rules. I've then specified Inbound Rules for specific ports and services, and ...
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0answers
347 views

Disable Network Discovery prompt in Windows 2012 R2?

I have a deployment server (WDS + MDT) for technicians to image remote servers in the data center. Our images have all Windows Firewall profiles disabled. Problem is recently some technicians have ...
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0answers
180 views

Remote management issues

I have HyperV Server 2012 R2 installed and I've opened ports in the firewall to allow remote snapins to connect. They mostly work, but, for example, the logical disk manager connects and shows ...
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0answers
1k views

Windows Firewall deployed by GPO detecting Public NL

Am struggling with Server 2008 R2 NLA and the Windows Firewall. Currently we are testing rolling out Windows Firewall via GP and have a test server that enables the firewall for Domain, Private and ...
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900 views

Clickonce applications being allowed through firewall

The company I work for uses an application that is deployed through clickonce. This means that everytime they update said program the program regenerates in a new location ie: C:\Users\%username%\...
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35 views

“Predefined set of computers”, where to define?

In windows server 2012, "Windows Firewall with Advanced Security", when defining allowable adresses, I can select adresses/subnets, address-ranges, or a pulldown with "Predifined set of computers" I'...
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90 views

Change or delete local windows firewall rule using group policy firewall rules

When I install a particular program on a computer it creates an overly lenient local firewall rule that allows inbound connections to port 1234 from any subnet. I want to create a more restrictive ...
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8 views

Reusable scope in windows firewall

Windows firewall has the concept of scope wherein a scope can be a list of IP blocks, or a predefined "set" (e.g.: localsubnet, gateway, WINS, etc.) Is there a way to modify and/or create a custom "...
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69 views

Windows Firewall Blocks GPMC

Found out that my Server 2008 R2 machine is not running firewall as it should. When I enable the firewall and try to open GPMC it states that it is unable to access the GPMC or the Primary Domain ...
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76 views

How to use Windows netsh firewall command to allow only specific ipaddress on all port and deny all other ipaddress?

I require a configuration of firewall which will allow me connection through only specific ip-address say 10.0.0.1 on all port ranging from 0-5555 and deny all other ip-addresses? What will be the ...
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61 views

Microsoft Message Analyzer and Windows Advanced Firewall ipsec tunnel packet sniffing

I am trying to view connections or attempted connections in windows advanced firewall. I have tried using the Windows Firewall Service provider however the trace does not return anything. Any ideas?
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196 views

Firewall rules to allow Hyper V Manager to connect to Hyper V Server 2012 R2?

I moved a Hyper V host into our Servers OU in Active Directory, which has some group policies linked. Now I am unable to connect to the Hyper V host with Hyper V manager. It was working fine before ...
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21 views

connections blocked to remote computer while no user logged on windows 7

A have a bunch of computers, all in the same OU, that are not contactable over the LAN (no pinging, no c$, no computer management, no SCCM connection) while the computer is not being used. The ...
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191 views

Windows firewall blocking network shares through VPN server

I have a VPN server in front of a 172.16.0.0/24 network. On my client side is a 192.168.1.0/24 network. I am able to successfully VPN in to the server network from the client, and I am trying to ...
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301 views

How to change NIC Location in Windows Server 2012 R2?

I have a windows server 2012 R2 machine that is acting as a domain controller and I have a virtual network interface(VMNET3) that is automatically placed in the domain profile. Is there any way to ...
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775 views

HyperV guest external IP: RRAS NAT on host VS direct access to external network with Microsoft Virtual Switch?

I have Win2008 R2 HyperV host with one physical adapter running a bunch of VMs. I have a subnet of external IP addresses: x.x.x.208 / 255.255.255.240 I used to have the following setup: host OS ...
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86 views

What could be blocking port 80 after port sniffing on standard install of Windows Server 2008 R2?

We have hundreds of clients all over the country who are able to access our website without any problems, but one cannot access our website (guess what, it's a big client!). Their network support ...
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1k views

Windows Server: can't connect to File&Print services through PPTP VPN

We have setup a simple VPN server with PPTP enabled and have forwarded correct PPTP 1723 port and GRE 47 on plain Windows Server 2008(NOT R2). Now when I am trying to connect from any VPN client ie: ...
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3k views

Setting up Windows Server 2012 Foundation to route all Internet traffic through an OpenVPN connection using RRAS

First of all I'm not (yet) a fully trained IT professional but just a college student so please forgive me if some of the things I'm about to ask might seem "stupid" because the answers are totally ...
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715 views

Windows Filtering Platform blocking packets for legitimate traffic

I am running into an issue with traffic from a webapp server to a database server being blocked or filtered. I have allowed inbound and outbound traffic on the needed ip and port with a firewall rule, ...
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1k views

Problems configuring winrm without windows firewall

I'm trying to follow this guide to prepare my server to become a chef-client: http://wiki.opscode.com/display/chef/Knife+Windows+Bootstrap When I run commands like: C:\> winrm set winrm/config @{...
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192 views

Windows Firewall Statistics

I am running Windows native firewall on Windows Server 2008 R2. I am looking for a way to get statistics, as the number of time that each rule has been fired etc. I can't find anything in the user ...
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641 views

Can't remote desktop into Windows 7 workstation in SBS 2003 network

We have a Windows Small Business Server 2003 network with Windows XP and 7 workstations. Some of the workstations have custom remote desktop ports and the modem/firewall (Netgear DG834) forwards these ...
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645 views

How to allow RDP through IPSEC using netsh advfirewall command

I have an offsite windows server 2008 R2 server. And an ipsec tunnel set on our router here plus a connection security rule in Advanced Firewall on the server. I have ssh access to the console on the ...
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32 views

SQL Conntection Problem From Web Application

I have an issue whereby I have a web application installed on one of my Windows Server 2003 virtual machines that has a database held on a local copy of SQL Express 2005. This has been working fine ...
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711 views

Only allowing certain Java apps through firewall

Using Windows Firewall and Advanced Security, I block everything outgoing by default and define outgoing rules to allow my approved apps through. For Java apps, I only allow java.exe through to ...
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10 views

Windows firewall log not rolling over

I have Windows 2012R2 and I have the firewall set to log successful and dropped connections (some machines set locally, some via GPO). Regardless of how its set, I notice that when the log reached the ...
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0answers
16 views

Determining what windows firewall rule is allowing traffic through

How can I determine what windows firewall rule is letting traffic through for a particular service? Windows firewall log does not indicate what firewall rule is being applied.
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0answers
11 views

“The session has been cancelled” in Windows Firewall IPSEC

I have a bit of a head scratcher. For some reason a couple of my 2012r2 boxes aren't able to establish Quick Mode connections. Main mode is established just fine. This only happens after the ...
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35 views

Remote Desktop can not access LAN PC

Have a Cisco VPN - I am able to login, and RDP to the SBS server. When I try to access the LAN PC's they are not responding. ireshark the connections on all the PCS at the time of the request, and I ...
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36 views

Windows Server 2012 firewall won't block SQL Server ports from WAN without blocking them on LAN as well

I have to open access to a web app in IIS on both LAN and WAN and an SQL Server instance on LAN only. Both the Web and SQL servers are currently running on the same Windows Server 2012 R2 install. ...
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62 views

Block Windows Service Access to Remote SQL Server with Firewall

So I've got a fun firewall question. We have a windows service that we have running on a Windows Server 2012 instance. It is connecting to a remote SQL Server that we do not own, among other things. ...
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28 views

Windows Firewall - Block IP address

The configuration is exactly as following: I am absolutely certain that 192.168.2.6 is the correct IP address, yet the according computer remains able to access shared files. Where could I go wrong?...
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24 views

Network adapter blocks connections after 1 hour

Recently imported a Windows 2008 R2 standard server into AWS EC2 Windows firewall is enabled and RDP etc functions ok through it. After exactly 1 hour all network traffic is blocked. Rebooting the ...
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204 views

Why would Windows Server 2012 not respond on ports above 6000?

This is a new question but similar to this previous one. I've inherited the management of a Windows 2012 Server (not R2) and I'm unable to get a response from any ports above 6000. I have services ...
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0answers
18 views

How to log Windows Advanced Firewall rule matches?

One server should accept connection to certain a port from only one IP. However it accepts this connection from any IP even without any explicit rules. While manually disabling-enabling each rule to ...
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208 views

Blocking inbound port 80 in Windows Firewall not working

In IIS, I have a website that is bound to HTTP (port 80) and HTTPS (port 443). I want to test blocking certain IP addresses from reaching this website. In Windows Firewall, I have a Block rule (...
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60 views

Use RRAS Assigned Static IP for TCP

I'm using RRAS on Windows Server 2012 to establish a VPN client connection from a server I have offsite and my home computer. What I would like to do is use the RRAS assigned static IP that I am ...
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0answers
148 views

Windows firewall rule disables 'itself'

I have a server running Windows Server 2012 r2. On this server I set-up a rule in Windows Firewall to allow specific ports used in NAT. This rule works great, but every day or so it seems to just ...
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38 views

Windows Advanced Firewall - Timeout mechanism?

I'm using an outbound rule to block access to the following remote IP address: 10.2.0.0/16 When I turn on/off a rule, it takes few minutes until it is applied. Is there any timeout mechanism ...
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64 views

Firewall & DNS issue

Server: Windows Server 2008 R2 When firewall is running on the DC no machines can resolve DNS which is running on the DC. It also prevents AD user logins. It also prevents Group Policy update. ...
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0answers
19 views

Dual Home Windows Web Server In DMZ - Firewall Settings

We have a Windows web server with two network cards. NIC A is publicly accessible to provide web services. NIC B is able to communicate with the internal network through the DMZ firewall. We'd like ...
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0answers
128 views

Enable ping across domain

I want to enable the "File and Printer Sharing (Echo Request)" firewall rules in Windows Firewall with Advanced Security for all servers in the domain. How do I do this with Group Policy?
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83 views

Is it possible to block shares on a Terminal Server Session?

So i have the following issue. I want to have a very restricted Terminal Server in a domain where a user can log on using RDP and only view certain files (on local TS drive). Its very important that ...
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241 views

Can't Remote Desktop on LAN, Firewall Rules in Place, Yet Packets Dropped

I've banged my head for a few hours on this. I'm beginning to move several computers to a new subnet, all Windows 7, all domain joined. On the original subnet (192.168.145.X) everything works as ...
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0answers
77 views

Win2008R2 Firewall will accept incoming connections from WAN but not from LAN

We have a Windows 2008R2 server that suffered a power failure a few days ago. The server is working fine but we are experiencing something strange: When the Firewall is on, the server becomes ...