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.