I followed the above guide to every detail, and the image resembles my desired configuration. At first sight everything works. Client Hosts 1/2 (on the left) get assigned an IP from the 192.168.1.0/24 subnet and can talk to LAN Hosts 1/2 (on the right).
Though LAN Hosts 1/2 (on the right) cannot talk to Client Hosts 1/2 (on the left), they can only talk to the W-LAN Client (192.168.1.30 in this example).
I'm confused as to what could be happening here. Has anyone encountered something similar?
So I think you can do all this in LuCi - you just set on your main AP radio to type 'WDS AP', and then you connect the repeater as a 'WDS client' (taking care to disable DHCP on the WDS client - and the other minor steps outlined in that link), and you don't need to setup any AP's on your repeater device - you just plug in devices to the LAN port, and they should get the IP address from your main AP.
I went the OpenWRT route on my RE305 just because it's LAN device would sometimes lose connection, and a reboot would fix it. So what I'm trying to do here is more than possible on the repeater hardware, though god knows how it was implemented in the official firmware.
Anyways, I just wanted to automate reboots and doesn't seem to be another way to root the RE305 other than flashing the entire firmware.
This entire re-configuration presents a huge hurdle, let alone reflashing my main AP to OpenWRT, for which I'm too big of a noob.
The darling device for OpenWrt at the moment is the RT3200, which in the UK costs around £50. I have three - one as main router and two as WDS repeaters. If you just search RT3200 on this forum you will see tons of discussion about it. They work perfectly with OpenWrt.
imho, given you witness same issue with both openwrt on RE305, and stock FW on WA850RE, you may have difficulty finding a 'compatible' wireless bridge device without a lot of trial and error (stock, openwrt, padavan, freshtomato, ddwrt etc) ?
fwiw, as you are using Unifi kit, perhaps you can install another unifi AP device and configure it to link wirelessly to existing unifi network. Then connect your ethernet device to the new PoE switch which powers the new unifi device or to the secondary ethernet port on the unifi device?
I appreciate all of you taking the time to read through the post.
I think I'm just going to go out and buy a used RE305 and use the stock FW.
I wouldn't bother with all this hackery if there was even a slight chance of routing copper to the end device, but for my current situation, reinventing the wheel doesn't seem worth the time.
Perhaps if we lived in an idyllic non-proprietary world, we wouldn't be having these problems, but that world would then simply be called communism. So for now I'm guessing we're all stuck with proprietary shit until we learn to make our own.