Hello, Having problem. I have 2 Windows 7 machines in a domain environment. If I use the invitation based RA, everything works fine over wan/lan etc, no problems What we rather do is offer remote assistance instead. If both computers are on same switch(same subnet), I can offer RA no problem. If they are on different subnets or wan, the offer remote assistance connection fails UNLESS windows firewall is turned off. If windows firewall is off, then it works over the WAN. Any idea why? Thx

Hi, Thanks for posting in Microsoft TechNet forums. It’s obvious that firewall is the source. Because firewalls can restrict communication between your computer and the Internet, you might need to change firewall settings in order to use Windows Remote Assistance. You could take the following steps to check the issue can be resolved: 1. Open Windows Firewall by clicking the Start button , and then clicking Control Panel. In the search box, type firewall, and then click Windows Firewall. 2. In the left pane, click Allow a program or feature through Windows Firewall. 3. Click Change settings. If you're prompted for an administrator password or confirmation, type the password or provide confirmation. 4. Under Allowed programs and features, select the check box next to Remote Assistance, and then click OK. Hope it helps. Regards, Alex Zhao TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi, Does this issue persists? Please feel free let us know the result. We’d love to hear your feedback about the solution. By sharing your experience you can help other community members facing similar problems. Thanks for your understanding and efforts. Regards, Alex Zhao TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.