@DanielSP Hi, thank you very much for the feedback, we will report it to related department, please pay attention to any new firmware on the router web GUI or official website.

@JensWagner Hi, thank you very much for posting on TP-Link Community. Could you please double check if it is Power LED or Internet LED keeps flashing? normally the Internet LED doesn't have a...

@Auris01 Hi, thank you very much for posting on TP-Link Community. We have been aware of this parental control issue and are working on the solution now, for future update, please refer to this post:...

@Asevia Hi, do you mean the existing speed limit settings still works but you are unable to change it or disable it for those client devices? Is there any error message? If convenient, please share...

@XPB-DEVOPS Hi, did you send email to the local support team in your area? usually the email communication might have some delay, if there is still no any response, please share with us more details...

@JamesZzz Hi, thanks for the feedback, C4000 is also homecare model and the issue is caused by the same reason, please refer to this post: HomeCare Parental Control Suddenly Stopped Working