Since I set up my mesh network my windows computer always picks up a hidden network with excellent signal strength. So I decided to try connecting to it as it had to be something in my house since my neighbors wifi signal strength is fair at best. So I  typed in the ssid (which is Deco) and password for the network I set up with my W2400 units and it connected to it but added a 2 at the end of the ssid (making it Deco2) as the non-hidden network (Deco) still shows in the network list. It's not caused any issues that I've noticed but the computer seems to randomly switch to it and seems to register it as a different network each time its up to Deco5 last time I noticed it. I'm pretty sure just turn off the auto reconnect to the hidden network would stop this. I'm just curious as to what exactly is the purpose of this hidden network?