Hello,
I suppose you already executed “Fix connection problems” in Anti-Theft → avast! Account
further diagnosis on my end is hardly possible without direct access to the device.

But - I have some hints for you:

  • disconnect from the online account and reconnect from within Anti-Theft (Anti-Theft → avast! Account)
  • try to connect through different internet connections (other WiFi’s for example)
  • make sure you have the latest Version of avast! Mobile Security and Anti-Theft installed (which you obviously have, since you just reinstalled)

I also experience some commands not going through on my private device. If I try an hour later - it works. The problem isn’t on your, or our side.
It’s Google Cloud to Device Messaging - a service provided by google that we use to communicate with the installation.
Sometimes the command messages don’t make it to the device and the command just times out. Or the command message arrives at the device, the command is executed - but the return message (confirming the reception) doesn’t arrive at the server.
It’s actually a google problem - we can hardly improve this.

regards,
Werner