Deco fell off of secure connection
After a few months of use, I noticed that one of my three Deco units was showing it's factory name instead of my SSID, and no lock, when looking at the list of available networks on my phone. After the shock wore off, I clicked on it with my iPhone but it wouldn't connect. I unplugged the unit, waited a few minutes and plugged it back in. It then disappeared from the list so that only my network SSID shows in the list.
Is it likely that this one Deco unit is faulty? It's been about a week.
Since I couldn't connect to it with my iPhone, is it unlikely that a neighbor or other person could have hacked my network?
Should I change my network password and reset my dozens of client devices?
I'm trying to map all the network clients and there are at least six that I can't identify. I've blocked them, but I'm naturally concerned that they're not in the house.
Many thanks for help.
DG