Hi, this is new to me, I have hardwire connected (ethernet) to apple box , there is intermittent "not network detected" sign , I noticed that when the sign appear , the apple box network setting change to WI-FI for a few second and then back to Ethernet and that is when the screen stop or error show up, I reboot and reset the Router, I reviewed the entire Apple box setting, everything look in the normal setting, the "not network detected sign" started about 2 months ago, could be the modem-router problem or something else?, any advice will be appreciated, thanks