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Pi-hole works as usual as with other clients on my network
Xbox One and Windows 10 client occasionally lose DNS resolution, about every other day. When I reset my router, which is a Linksys router running Tomato firmware, DNS starts working again. Any thoughts what to troubleshoot next when it stops working (either on the router or possible pi-hole config)? On the Windows client I tried ipconfig /flushdns which worked one time to get things going again but now a router reset is the only thing that seems to solve the issue when it happens for both Windows and Xbox One.
I have these commonly whitelisted domains added to the pi-hole for Windows and Xbox:
Also this is added to the router in the dnsmasq custom config section (192.168.1.18 is the pi-hole IP):
FWIW, this is the same Windows client I mention in this post (where I changed NIC settings to not go to sleep): https://discourse.pi-hole.net/t/dns-timeout-failures-from-windows-10-client-after-sleeping/7692/4