Connection issues

Why does my floodlight cam keep losing connection. It's proberbly about 20ft away from the main hub, but I have also had to run it through the wifi booster for it to get a signal. Surely it must be able to reach further distances than this. I have good wifi with everything else. I am then having to reset it at least 3 times a day, normally more. Not good as it is ment to look after the property when I'm not there.