Written on January 4th, 2010 by viliyana89no shouts
You need to establish a Remote Assistance connection with Michael’s computer. What should you do next? The right answer is to ask your firewall administrator to open the TCP/IP ports that are used by Remote Desktop Services.
The problem in this scenario is that the firewall is blocking the Remote Desktop Protocol port 3389. Remote Assistance uses the Remote Desktop Protocol port 3389 for outbound RDP traffic. This port is typically blocked on most firewalls, in which case we cannot connect to the Remote Desktop. We must configure the firewall to enable Remote Desktop Services program, which is Mstsc.exe, to make outbound TCP connections on port 3389.
Written on December 21st, 2009 by viliyana89no shouts
When an expert attempts to connect to a novice’s computer, the expert may receive the following error message: ” A Remote Assistance connection could not be established. You may want to check for network issues or determine if the invitation expired or was cancelled by the person who sent it.”
This problem can occur if the Internet Connection Firewall has been enabled after the Remote Assistance invitation was created. To resolve this problem, we should either create a new Remote Assistance invitation while ICF is enabled, and then send the new invitation to the expert; or we should disable the Internet Connection Firewall while the expert attempts to establish the Remote Assistance invitation; or restart the novice’s computer, and then have the expert establish the Remote Assistance session.