I'm not sure I see the point in this VirtualLarry, the problem is not while connected to the Wireless AP but when going from the AP SSID to the Router SSID, this would also negate the DNS filtering from the PI-Hole and lead to a DNS leak, and I don't think this is a DNS issue as IP's can't be resolved by lookups either when the clients have no networking.I guess I'm a little confused with your diagram. Router 2, is shown as "DHCP: Disabled", but yet, "DNS: PI-Hole (IP)"? If DHCP is truely disabled, it's not going to be handing out DNS server IPs to clients with PI-Hole (IP). Do you mean that the router's own DNS is set to the PI-Hole? If so, consider setting that to Router 1 as the DNS server for Router 2. (Router's OWN DNS server, not the DNS server handed out via DHCP to clients, right?)
I was wondering about broadcast domains, with the powerline in the mix, and ARP issues (ARP caching / proxying by the router or powerline).I think this might be some layer 2 issue or something but I'm out of my depth.
Apologies this isn't my field, you are correct with: 192.168.1.0/24, just checked it in router/google CIDR calculator, 192.168.1.1 is nothing. DHCP is disabled on the PI, it's disabled on the TP-Link AP, only DHCP server is on the Draytek, I need to use the Drayteks one for other reason (has some applications you need to use that DHCP server for).If router IP is 192.168.1.254 with /24 denotation then the network is 192.168.1.0, the correction denotation is 192.168.1.0/24 not 192.168.1.254/24. And what is this IP address 192.168.1.1?
In room 1 there are 2 devices capable running DHCP servers - Draytek Vigor 2860 & Pi-Hole. Did you enabled both DHCP servers?
Or probably 3, did you check NAS server?
This is where I was thinking but my networking knowledge gets even more flakey here, I don't know enough about powerlines and how they function, or ARP tables and how they renew or anything that could be causing this, it seems simple enough to use an AP over a powerline to a router, I'm not asking for much, it's what they were designed for so don't know why I'm getting this issue or what to do to try to find out. Odd thing is the clients get an IP address when they aren't functioning. In theory broadcast domain should be ok as it's all on the same LAN?I was wondering about broadcast domains, with the powerline in the mix, and ARP issues (ARP caching / proxying by the router or powerline).
Possibly someone who knows more than I (not hard) can shed some more light on possible issues here.
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