We switched to IR control of the TVs, but we have the TV's connected to wifi. Historically, I saw the network connection drop offline (hard wired or wifi) after about 2-3 days. After the last firmware update, the update that didn't address the connectivity issue per the post above, the wifi connection stayed online. I haven't updated to the latest firmware but I'm getting prompts.
IR control has been great. It just works... I expected the IP control to do the same, but hopefully it will get fixed soon.