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A technician needs to connect to a users desktop using Remote Assistance but is unable to connect and the invitation keeps timing out. Which of the following ports must be open (e.g. not blocked by a firewall) to allow Remote Assistance?

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A technician needs to connect to a users desktop using Remote Assistance but is unable to connect and the invitation keeps timing out. Which of the following ports must be open (e.g. not blocked by a firewall) to allow Remote Assistance?






 
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