I too have had nothing but issues with this firmware, and worse still I had just moved so my initial assumption was that it was everything _except_ a silent firmware upgrade on the router which wasted the best part of two days of trial and error.
Like others I was seeing issues with wireless backhaul continually disconnecting (flashing blue). When I finally got around to setting up a cable for wired backhaul (my preferred config), everything seemed fine until I realised that no devices were able to maintain wireless connections to the node(s). My laptop was the clearest example of this, it would connect just fine immediately after I rebooted the node, but after a few minutes it would lose connection (deauth) and then subsequent attempts to connect were rejected, my laptop's logs suggest authentication was failing even though it was initially able to connect fine.
Even while wireless was failing on the node(s), I could establish a reliable connection to the router just fine, which suggests the issues are with wireless on a node only.
Like others I was seeing issues with wireless backhaul continually disconnecting (flashing blue). When I finally got around to setting up a cable for wired backhaul (my preferred config), everything seemed fine until I realised that no devices were able to maintain wireless connections to the node(s). My laptop was the clearest example of this, it would connect just fine immediately after I rebooted the node, but after a few minutes it would lose connection (deauth) and then subsequent attempts to connect were rejected, my laptop's logs suggest authentication was failing even though it was initially able to connect fine.
Even while wireless was failing on the node(s), I could establish a reliable connection to the router just fine, which suggests the issues are with wireless on a node only.