@Sunshine The SPI firewall is what I am using now as it is the only option I have without additional hardware. What I would like to do is to use two routers with a single incoming internet connection...

@Saku241 With the hardware you have, I can't think of a simple solution. Something I tried here was to install another router downstream for the IoT devices. That means double NAT and also opens up a...

@Saku241 I have the same setup here with all IoT devices isolated. My testing shows that they can not access anything on the main network, the router, or even other isolated devices. The solution is...

@Saku241 Using the AX55 DHCP server, you can not have separate pools for assigning IP addresses. It only allows one range as far as I know. How is the AX55 connected to your ISP's modem/router? If...

@judywatson Just read your post. I am no longer an educator (now retired) nor do I have experience with the AX73 router. If you still need help, you should provide some more amplifying information if...

@Sunshine Hi. I've been doing some testing today and Point number 4 in your post is not exactly true, at least with the AX55 router. Using a PC to connect to the IoT network, and with the PC in the...