Troubleshooting connection issues What issues do you need help resolving? On the Invitation Status page, the invitation has a "Resend Required" status. Possible Cause: If you use a dial-up Internet service provider (ISP) to connect to the Internet, the ISP might assign your computer an Internet Protocol (IP) address from a pool of IP addresses each time you log on to your ISP's network.(These addresses are assigned by the Network Information Center (NIC) and uniquely identify each computer on the network that uses TCP/IP protocol. The IP address is made up of four groups of numbers, each separated by a period, such as 123.432.154.12.) If you disconnect from the Internet after sending your Remote Assistance invitation, you could receive a new IP address when you reconnect that your assistant's computer will be unable to recognize. Possible Resolution: On the Invitation Status page, click the invitation you want to resend, and then click Resend. Then follow the instructions to send a Remote Assistance invitation. I cannot establish a Remote Assistance connection with an assistant. Possible Cause: Either your computer or both your and your assistant's computers have Windows Firewall enabled and set to On with no exceptions mode. This blocks Remote Assistance connections. Possible Resolution: Try sending the invitation using Windows Messenger. If this doesn't work, it may be because both your and your assistant's computers are set to On with no exceptions mode. All connection methods, including e-mail and Windows Messenger, should work when your Windows Firewall is not set to On with no exceptions mode. Learn more about Windows Firewall settings. If you cannot establish a Remote Assistance connection, and you are using a third party firewall, refer to that firewall manufacturer's documentation for opening port 3389.