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Have 3 Deco x20's and they are working fine. I've enabled the guest network and it works ONLY if the Isolated from Main Network is turned OFF. I do want this enabled, but what is the issue?
I do have my own DNS server on my network.
Try pinging your DNS server IP address from device connected to Guest network, and also IP address 8.8.8.8, and you will have an answer.
With the Isolated from Main network off, the DNS is pingable. ON, it is not. Okay, so I get why it doesn't work.
Any suggestions on how to get it to work with the isolation from main network ON??
You have two networks: Main and Guest. They are isolated from each other (you want it that way).
You have DNS server on Main network. You do not have DNS server on Guest network. Devices on Guest network can reach Internet, but they can't resolve host names (obviously).
If you want to run your DNS server and keep these two networks isolated, you need to add DNS server to Guest network.
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Other options I can think of are:
- Don't keep networks isolated.
- Don't run your DNS server, use your router's DNS service instead.
- Use DNS server with similar features you need (I am assuming ad blocking) in front of the router, i.e., DNS service from the Internet.
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