Existing Deco started flashing blue
I setup a 3 unit Deco XE75 in my boss' house about 8 months ago. He was away on vacation and when he came home had no wifi. The main Deco unit is flashing blue and the 2 others are red. I thought flashing blue meant it was ready for setup, but they were setup 8 months ago and had been running fine.
He has a similar setup at his vacation home, which is working fine.
The app had said there was something wrong as it could not connect to get the status, but now we only see the vacation home in the app, the regular house is totally missing from the app.
Does anyone have any ideas on what might be going on? I've got to go to his house to troubleshoot.