I have a Routerboard 493G, and following these instructions on the wiki, I was able to get my device to connect to a separate Access Point (that in-turn is connected to a Netgear router/internet providing DHCP).
The Routerboard WLAN1 interface has an IP address from the netgear router, and I can use the system tools to ping addresses on the internet from the Mikrotik OS.
Unfortunately, the devices connected via the LAN ports on the routerboard cannot connect to the internet (no route found), and do not get an IP address from the netgear router via DHCP. I can manually assign them an IP on the same subnet as the routerboard successfully.
What am I missing? Very happy to provide configuration settings (if you can tell me how), and thanks in advance for any assistance provided.