How do I block ports with the Hitron modem? I did it years ago with the older one but am not sure how to do it with the new one. I did the GRC Shields Up test and am not
fully green for "Stealth" online, I have various ports "closed, but not stealth" apparently like Port 22, 23, 80 and 442.
How can I close those off so they don't even reply to requests?