I've just purchased a AP905 to use as a mesh node with the 2866ax as the mesh root. I've tried setting up the mesh network using both the router firmware as well as the Wireless App but the AP905 only shows as yellow Online light and not the green Online Sync Ready light. So it means the AP905 hasn't received the SSID settings etc. The intent was use the Mesh wirelessly rather than through POE. The user guide says to setup the node using a wired connection until the settings have been synchronised but I've left them connected (by wire) overnight and it hasn't synchronised.
The 2866 in using 4.5.2.2_BT firmware and the AP905 on 5.1.0.1 firmware. I did try to downgrade to earlier firmware (using the compatibility table shown in the router control panel) in case there is an issue with the latest firmware but I had the same results. One thing I've found is that going into the Mesh Status page on the Router Admin control panel and clicking the Password button that when you try to enter the AP905 credentials nothing appears to happen (there is actually a javascript error and I've cleared the browser cache to make sure it isn't using an old page).
