I had the same problem and it seems that I have found the solution. The problem is not from the keyboard but rather from the Bluetooth driver settings on your computer. In order to solve that go to device manager and double click on your Bluetooth driver to access properties. Choose the power management tab and uncheck “Allow the computer to turn off this device to save power”.
Try it out and let me know if it works. It’s working great for me so far.
Still this keyboard has the standby feature but it’s only activated after 8-10 minutes of inactivity, which is good for saving battery life and waking up takes only 1-2 seconds after clicking any button, which is convenient.