Xbox power button flashing rapidly and Wi-Fi disconnects

"Xbox power button begins flashing rapidly and Wi-Fi and all attached devices disconnect"

This sounds like the OS update step between Verifying and Applying a System update.

If its a Xbox 1 X or earlier this flashing will last about 12 -15 times and then the console will restart and Apply the update.

If the console is a Series X/S the flashing lasts about 5 times before it Applies the update.

Hi, XJGthe78x! thank you for reaching out.
My name is AJ, I'm an Independent Advisor for the Xbox Community.
I'm sorry to hear you are experiencing some issues with your console.

If you don't mind, I'd appreciate it if you could answer the following questions:

- May I ask which Xbox model you are using?
- Could you tell me what troubleshooting steps you've tried so far? just so I have a better understanding of the situation.
- As for your external devices, have you checked if the issues persist when these are unplugged?

Thank you! I'll be looking forward to your reply.
Best regards.

Disconnect your Xbox from wi-fi completely then disconnect power from wifi modem wait 1-2 min. then re-power. Once it's back up reconnect Xbox. Prior to disconnecting Xbox restore it's network settings to default.

Update: Same issue today, decided to stay offline today, disconnected from my wi-fi, turned off online mode, controller does not disconnect but 'freezes' every few minutes or so from 10-30 seconds with whatever the current button input was. Not sure if it's
related to the wi-fi/controller disconnect issue.

we have a Wi-Fi extender but it doesn't do much for the Wi-Fi itself my Xbox itself is cabled. the connection is fine it's just that it randomly disconnects