Deco M5 Guest Network Isolation issue
Hello everyone,
I have an interesting problem I'm trying to solve.
I have a deco m5 system running in AP mode (router mode doesn't offer the functionality I need). It works well, reasonably good handover, and coverage of my home.
However one thing that isn't working is the guest network isolation.
If I turn on network isolation there's no internet access, if I turn off isolation guest network has internet access. Now I do want to have the guest network isolated - so I must try and fix this.
I know why it isn't working but I can't work out how to solve it at the moment I need some external brain power.
The issue is I use pihole to manage my DNS and avoid ads and tracking etc... It's brilliant.
If I turn on network isolation on the guest network it can no longer access the DNS server. I can ping external addresses but it cannot resolve them. So somehow I need to bring the pihole into the "guest" network but I can't workout how to do it on the deco.
If I turn off pihole and just use my router as the dns server there's no issues at all, but it's one of these things I'd like to solve if possible!
Here's a copy of my network if that's of any use (it's simplified ,the full network map has too much personal detail in it!).
So my question, can the deco be accessed to add some routing to it?