I just replaced an old NETGEAR router with an AC4000 MU-MIMO Tri-Band WiFi router. My external (public) IP has not changed. After setting up Virtual Servers for port 80 and 443 to my statically (DHCP reserved) LAN system I can't access any of the ports from the outside.

telnet: connect to address WAN IP: Operation timed out
telnet: Unable to connect to remote host

System parameter for NAT is enabled. Firewall is disabled. I can access the LAN system on the desired ports.

The System Logs only shows that the virtual servers have been enabled.

DMZ also does not work. Nothing comes in from the outside. Switching back to the NETGEAR all works again.

What else can I check?

Thanks