Hello all!
I have a MikroTik “cAP ac” device behind my main router. Main router hosts DHCP server and provides NAT access to internet. I would like to use MikroTik as an Access Point for wireless devices, and let those devices obtain IP addresses from dhcp server of the main router (there should be no nat and no dhcp server on MikroTik). Is the Bridge Mode (see screenshot below) a proper way to achieve this configuration?
The problem is that once i set MikroTik to the Bridge Mode, MikroTik does not obtain an IP address for its own Webfig server and becomes completely unmanageable. How do i fix Webfig?

Connect using winbox(64).exe and MAC-address, add dhcp-client to the bridge and here you go.
Advice to use winbox.exe to inspect dhcp stuff has helped me a lot. (Pleasant thing is that winbox.exe runs on Wine without any problems.)
When i connected to Mikrotik with winbox (and MAC-address), the dhcp-client for the bridge was already configured (defconf), and it it was stuck in status “searching…”
Also there was a defconf dhcp-server for the bridge, highlighted with red color. I disabled that dhcp-server manually.
Solution for the problem: do not specify “Address source: Ethernet” (as on screenshot in first message of the topic), instead specify “Address source: Any”. It results in dhcp-client successfully obtaining IP lease on the main router (and, as a consequence, fixes access to Webfig). Although i don’t understand why does this solution work: connection to the main router is wired, not wireless!