Guys, what could be version 2.0.6 Apollo 2 every 2-3 days the device disappears from the network, you have to turn it off and on hard. Then it works again for 2-3 days and also disappears from the network. Although Apollo itself works when you reboot it.
I get the same thing on my Apollo 2, around every 4 days for me. I plan to switch to 2.0.5 to see if that helps anything, as per eagleye's suggestion below.
I'm running v2.0.5. I tried v2.0.6 but it kept crashing on my apollo II. Have you tried reverting back to v2.0.5 and if so, is that network issue stable on the old version? I would think it's a problem with the network adapter, initially. My node and miner are running happy on the old version right now. If it ain't broke, don't fix it.
My Apollo 1 is doing fine, lining up with what garetjax said.
I upgraded my Apollo 1 a month ago to 2.0.6 and not a single issue. I am also running an Apollo 2 standard off of my Apollo 1. Constant 63/64 connections. It's in my office so it is running in eco mode. I use an ethernet cable.