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What we recommend doing to rule out a firewall as the source of the problem is to restart your computer into Windows Safe Mode with Network Support. This will not load any firewall software.

If you need more help solving a firewall problem on your computer blocking Sierra Chart from connecting to the servers it needs to connect to, you will need to contact someone who can help you with this problem on your computer or hire a competent computer expert to help you with this. Sierra Chart support does not provide this service. Sierra Chart support can only tell you about what ports and addresses, it needs to connect to. If a firewall is blocking the connection, the only other advice you will get from Sierra Chart support is to remove the firewall from your computer totally and completely and do not install it again for the very simple reason that we do not support other software on a user's computer, and we want to provide a fast resolution to the problem.