This is a Roku/ISP issue and you are stuck in the middle. Call your ISP and they hopefully have worked out a solution with Roku. Thank God my ISP worked out a solution with Roku. If your ISP cannot help you then take the Roku device back and buy an Amazon Fire Stick. Amazon at least has customer support. Getting in touch with Roku is impossible since they do not have customer service. Wish I had better advice.
After reading the Community Guidelines, we are at a loss to understand why you assert that ALL topics created have to be requests for "Support".
1) Doesn't the Original Poster determine what the subject & purpose of their post is?
2) Aren't Community Members free to introduce a NEW topic in any category (such as "Features, Setting & Updates") if their post is reasonably related to the topic of the category? ?
3) How/where is the Original Poster supposed to introduce a NEW Topic when their post is for "discussion", but NOT for support?
4) If a Community Member is ONLY interested in receiving replies (whether for support or not) by ROKU Employees (not simply other un-official Members) how should one do that?
Please include links to the parts of the Community Guidelines that support your answers.
Thanks for your time and consideration.