MESH router satellite is going offline. For the last couple of months, I am seeing this issue.

[Mrteam]

Mesh router M60 satellite keeps going offline.
Also the network range is very limited.

[plemans]

You didn't give us much to go on.

1. what firmware is on the router? 

2. what modem/gateway is it connected to?

3. you put it goes offline. What does this mean to you? do both wired and wireless devices disconnect? Do they say "connected, no internet". does the wireless stop broadcasting entirely? what actually happens when it goes offline? This is key since we aren't there to see whats going on. 

4. what size is your home? 

5. what are the interior walls made of? certain materials block wifi better than others.