@YarMij 

Hi, 
Please ensure the Deco app installed on your phone is up to date, and you can pull down the page on the Deco app to refresh it and see if the client status will update.

If the client list status displayed in the Deco app differs across different phones, we recommend following the instructions below to send the app logs to our support team.
How to Get and Send Deco App Log to TP-Link Support
 

Then, send an email to forumsupport.usa@tp-link.com with the following information for further assistance.

Subject: [Forum Escalation][ID 867352] Client list status is abnormal in the Deco app
Forum Nickname: [User Provided]
Thread URL:  https://community.tp-link.com/us/home/forum/topic/867352
Model&Version: [User Provided]
Description: [User Provided]
Any Other Relevant Information (Logs, Config Files, Images, etc.): [User Provided]

Once sent, a ticket will be created in our support system, and a team member will follow up on your case.

Best Regards