Ok, so i'm back at my old configuration.
internet <> WAN|IAD422|LAN <> WAN|Ergenic(A)|LAN <> LAN|Ergenic (B)
IAD: DHCP server on 192.168.1.1 / 192.168.1.2; Firewall off.
Ergenic(A) DHCP server on 192.168.2.2 / 192.168.2.299 Firewall on. WOL port forwarded.
Egenic(B) DHCP server off (AP mode) I gave this router IP 192.168.2.3
For some unknown reason internet does not work if you put you're router (in my case the Ergenic(A)) at 192.168.2.1. However if started at a higher number in my case 192.168.2.2, suddenly everything works like lightning. Internet is working, homenetwork is fine and you will be able to acce al the routers without a problem. Discovered this by accidently and still can not figure out why 2.1 is forbidden. My best guess this has something to do with the configuration tele2 makes with this IAD422.
Unfortunatly even with no firewall at this IAD422 but a working one in my Ergenic(A), (configured like it should! Worked before like a charm) WOL doesn't seem to get past the IAD422.
Anyone has got any idea left to try?