I am a new user in OpenWrt (this is my first post) and most functions are disabled at my Trust Level 0. Regarding WAVLINK WL-WN531A6 (QUANTUM D6), the associated webpage with installation instructions needs some updates:
In particular, it appears that the supplied .bin images do not contain the LuCI interface, therefore it is not possible to access the system via http://192.168.1.1 as indicated - access is only possible via SSH. To get web access, the user should connect the WAVLINK's WAN port to a router that provides internet, ssh to 192.168.1.1. loggin in as root (no password required) and issuing at the CLI two commands:
opkg install luci
Being new to OpenWrt, it took me a while worrying that I have bricked the router and multiple attempts to install the firmware, before understanding that the system works fine, it just does not accept http connections.
Of course, a better solution would be to modify the supplied bin files to have LuCI preinstalled.
It appears that tmomas is responsible (or was involved) in maintaining the router's webpage. Tmomas, please edit the webpage if you'd like.