I've had GV for years and struggled with it many times. I know you plan to try somethings tomorrow from your last post. I was just thinking about your thread.
You say you're not getting anything on any of your devices. This says to me that it may be more about the account than an app because the app and the extensions in browsers and things, only serve you the service. They don't play a vital role in the grand scheme of things.
If it were me, I would start by ensuring the account is active and in good standing. Google says to do this, log into your Google Voice account at voice.google.com and attempt to make an outbound call. You could just call your regular number or a friend.
If on the other hand you mistyped and these issues are only affecting service to your device, I do not see any mention of verifying connection to your phone number. Seems simple and obvious but it's usually the simple things that get you because they are simple and easy to overlook. To check connection to your phone number, and to be sure it is the correct phone number, these are the steps.
Link Your Phone Number
- Open: the Google Voice app or go to voice.google.com on your computer.
- Navigate: to Settings (gear icon).
- Select: Devices and numbers.
- Tap: New linked number.
- Enter: your phone number and tap Verify.
- Enter: the verification code sent to your phone.
You also do not mention if other GV things still work or if you've looked at them. Other than not getting any of your devices to ring for calls does everything else work? In the app, do you get SMS and VM? Are you able to send SMS? Are you able to make calls from the app? Do calls still go to VM?