I have a Deco M5 that I just recently upgraded to the newest firmware and every single time I have to do a firmware Update all hell breaks loose in my network.
The firmware update seems fine it counts down as it should the main deco comes on with a green light and then all my devices and remote decos start going haywire. I have to end up rebooting everything to get the system back functioning.
My cable modem
Then most devices.
This is every single firmware update I have done not just the last one.