I have a very weird issue using OpenWRT with Linksys EA9500.
My configuration is simple: All devices, Ethernet and WiFi connected to a single Linksys EA9500 router, which is wired connected to a Cable Modem Router for internet access. The Cable Modem is not in a bridge mode and with DHCP enabled, so the Linksys EA9500 leases an internal IP from it and is the only device connected to it. WiFi on the Cable Modem are all turned off.
One of my devices, wired connected directly to my Linksys router is a server machine with TrueNAS.
Problem is that I don't have access to it (network unreachable) from any of my Wired connected devices, but I can access it from my Laptop, over WiFi, which is on the same network.
My WiFi setting share the same Network (called lan - in a bridge mode), Firewall rules applied on the lan, but since it's shared, I guess they are the same, so doesn't look like Firewall settings.
Any idea what might be the cause?