I’m also experiencing issues with blocking and unblocking devices. I actually returned the XE200 thinking there was something wrong with the device and bought the XE75 Pro and I’m still having the same issue. For testing I only connected two devices and blocked one but it still has access to the internet. This makes the parental controls worthless.

  @Pinky-12 I have been troubleshooting this with the TP-link support team since October last year.  One person left and the case sat idle, but I finally got their attention again.  They have not solved it yet.  We tried a special firmware test but no luck yet.  I honestly don't understand how this can exist in the marketplace and not function.  Are we the only people using parental controls?!  That is impossible.  My hunch is that people struggle with it and don't understand whether it is working or not.  
 

attention TP-link-  please do not send me instructions on how to use the parental.  Believe me,  I know exactly how they are supposed to work and how to use them.  
 

just please fix the issue.

It should be very easy to replicate.

 

Here is an example of a recent test attempting to isolate the issue using a separate network configured with one deco that we factory reset to test a firmware update:

 

Here were the steps I took:

1. Reset one of my current satellite Decos that is v1 model
2. Set this up as a new main deco directly connected to the modem (connecting by ethernet to the other main deco was not recognized)
3. Connected Chromebook device to the new network - CONNECTS TO INTERNET
4. Created a test profile on the new network
5. Added the device to the profile:  STILL  CONNECTS TO INTERNET
6. Added future Bedtime (all other restrictions disabled)  STILL  CONNECTS TO INTERNET
7. Changed bedtime to now:  SUCCESSFULLY BLOCKS INTERNET TO DEVICE
8. Changed Bedtime back to Future FAILS TO CONNECT TO INTERNET
9. Tried rebooting the Deco, FAILS TO CONNECT TO INTERNET
10. Removed device from the test profile:   ABLE TO CONNECT TO INTERNET