I recently installed the Astaro security gateway firewall in my home. They offer it free to home users. It does an excellent job of protecting your home network. One of the downsides to firewalls is there’s always something that gets blocked that shouldn’t. The issue I was having was with Netflix. On tablets and home streaming devices I could not get Netflix to work even though I had told it to bypass scanning for streaming content. To fix it I added the following URls to the exceptions list and skipped all checks.