I currently have to routers in my house, a good one that I bought a few weeks ago, and one provided by the ISP. The good router is connected via ethernet to the ISP router. For port forwarding, which router interface do I use? Do I port forward on the old router or the new router, or maybe even both?
Why have 2 routers? Ditch the ISP one, and just use your “good” one.
I cant, I have two IPTV boxes that must connect to the old ISP router, the old ISP router also serves as a modem. nothing except the IPTV boxes are connected to the old router.