I have found several guides on guest network:
https://www.marthur.com/networking/mikrotik-setup-guest-vlan-wifi/2582/
https://category5.tv/shows/clips_tech/episode/652-mikrotik-guest-wifi/
https://itimagination.com/mikrotik-guest-wireless-network/
https://www.prado.lt/how-to-setup-mikrotik-guest-wifi-network
https://support.ringlogix.com/index.php?/Knowledgebase/Article/View/102/0/how-to-setup-a-guest-wifi-network-on-a-mikrotik
and I have been successful with single-band.
But I am stuck with dual-band guest network and I can’t find any guide.
Initially — since there are separate wlan1 for 2.4GHz and wlan2 for 5GHz — I had thought that I’d create twice as much VLANs, bridges, ports, addresses, DHCP setups and firewall rules: separately for 2.4 and separately for 5 GHz, yet it doesn’t work this way, I must have missed some configuration.
Quick Set in RouterOS v6.47.10 (long-term) does contain a Guest Network option in Home AP Dual interface mode but I need more than one guest network, and the Guest Network option overwrites already existing entries without creating new ones ([off-topic] even if those entries were created manually, not by Quick Set — I would call it a bug [end of off-topic]).
I don’t own a tri-band router, but since we are at the topic of more-than-one band, other users may benefit would the info be available.
Thank you