My WC3 was replaced late Sept with the same issue that everyone is facing. After I reinstalled the replacement unit on Sept. I noticed that the firmware is older version 0.8.58. Soon after I set it up and running. I blocked the wifi on the WC3, so it won't get update. So far, I have not had any issue since and still running 0.8.58. I probably won't unblock wifi until the real issue was resolved. My WC3 HW is the F version.