TCP port is Transmission Control Protocol it stands for the ending of communication between two ports they are assigned a number between 0 to 65535. it helps identify the IP address to be able to use and connect with the server and make the connection secure and able to remain secure within the site. It is important to have the TCP/IP to keep from getting viruses and being hacked from outside sources.
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The support ticket system is for technical questions and post-sale issues.