OK. got the smart router set-up for the use with voyager.
I've got weird and complicated set-up, so it did not play nice at the begging.
I run pi-hole for DNS and DHCP, so devices were initially slow to connect to wifi for some reason, took longer to get online and show up at the connected section on the router.
However, with the few restarts of router and pi-hole server, everything is fine. But there was one glitch when internet went down out of the blue, don't know if it's voyager or router.
WiFi speed is good, LAN is perfect. Yet to try to max out the local content streaming (couple 4k movies simultaneously)