Prerequisite: Knowledge of the Microsoft Management Console (MMC) and its 'Windows Firewall with Advanced Security' plug-in.

In order for Windows Update to check whether an update is available and then to download the update files, you first need an outbound firewallĪllow-rule that allows the Windows Update service to pass through the outbound firewall. Suppose that, as the default, you've set the outbound firewall to block (see Note that a 'solution' that takes down the outbound firewall is I know I can get round the problem but I wanted to at least understand why this is happening.Can anyone kindly give me a Windows Firewall rule that allows Windows Update? Assume I'm running MMC's 'Windows Firewall with Advanced Security' snap-in as Administrator. I was hoping that someone could tell me if this is expected firewall behaviour or at least be able to give me a clue as to why the firewall affects the connections. If I turn the firewall off for the public profile connections are made to all devices.Īlso if I give each controller a different port number connection is again made to all devices. The network comes up as a 'public' network and with the firewall for the public profile enabled only connections to the first 2 devices are established. Each device has it's own IP Address but uses the same port.

The devices are connected to their own ethernet adapter in the PC '192.168.1.32'. I currently have a Windows application that connects to 4 embedded devices via TCP but Windows firewall only seems to allow a connection with 2 of the devices even with exceptions setup on the firewall. I hope this is the right place. I am having a few problems with the Windows 7 firewall when connecting to embedded devices.

Runemate blocked on firewall