Clients with disabled Status

Hello all,

we have a customer with about 850 clients in "disabled" status. Mostly SONAR and/or Tamper Protection. The number varies a lot and was above 3000 a couple of weeks ago... 

Any adivce on how to solve issues with malfunctioning components? I also don't really understand what is causing the client to report that a component is malfunctioning...!?

Thanks in advance!