I presume the system has had a factory reset performed and setup from scratch since v1.07 was applied?
I had not done a factory reset, good call. I did so right after you posted, and since then I haven't had any issues, nor has my wife. 1.07 seems to have fixed the wired backhaul flakiness! But it did require the factory reset to make it effective.
Anyone else see an improvement under 1.07?