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Many people use personal firewall software like McAfree, Norton or Windows Firewall to block unwanted viruses. Since these programs work by blocking unknown applications from being downloaded onto your computer, it's possible that your firewall software is blocking the download of GoToMeeting.
To solve this, you can try manually enabling GoToMeeting to join sessions by opening your security software and accessing its firewall settings.
Most security programs will allow you to configure access for specific programs in their firewall settings. To configure the firewall to allow GoToMeeting, look in the program rules for g2mcomm.exe and set it to “Allow” or “Full Access”.
The method for doing this will vary depending on both your operating system and the firewall software that you are using (e.g., the built-in Windows Firewall vs. a third-party application like McAfee or Norton).
For more targeted assistance, please visit the support site of the manufacturer of the security program that you have installed on your computer.
1. Host or join a session to set off your firewall.
2. When prompted to enable GoToMeeting to access the Internet, click Yes. Then select the "Remember the answer each time I use this program" check box.
3. Open your anti-virus program to allow it to accept all GoToMeeting files. The following must be admitted via 1 of 3 ports: 80, 443 or 8200. One-way TCP connectivity is required (TCP outbound).
If you're using a firewall in a corporate environment that uses a network domain, you may have a hardware firewall.
Instruct your IT department to read the Optimal Firewall Configuration Fact Sheet to allow GoToMeeting to connect.