@xcybermail Because your running your decos in AP mode you lose out on a bunch of options including "Device Isolation" that's why you are unable to find this option. Here is a list of what options...

@HomeNetwork123 See if this helps https://www.tp-link.com/us/support/faq/3297/#:~:text=Open%20the%20Deco%20app%2C%20go,part%20of%20the%20internal%20antennas.

@EZY123 Ah perfect! Glad I could help :)

@Simorame He wont be working for about 10 hours from now but going to ping David one of the tp-link staff members he can let us know if the beta firmware is safe to install for you or not :) @David-TP

@David-TP

@Simorame Any luck with the beta firmware? For the speed issues see if the steps in the links below help https://www.tp-link.com/us/support/faq/3670/ https://www.tp-link.com/us/support/faq/2429/