@Rimi Hello, Please check my reply on your new thread.

@MarkoGGGG Hello, You could check the latest firmware of RE300 from here: https://www.tp-link.com/support/download/re300/#Firmware If RE could not detect 5Ghz WiFi from main router or have unstable...

@Kris83 Hello, Sorry for the late update, we double-checked the shipment status of RE650 V2 with related department and was told that RE650 V2 has not been shipped to other countries yet... So far we...

@Chamywak Thank you for your update. You may need to google the model of router to check if main router a dual-band or single band router. As there is some other settings need to be checked on...

@aosrlab Hello, Thank you for your reply and the photos. Though it does not seem to be firmware related, it is still recommended to check Tapo app--> Me--> Firmware update, and make sure firmware on...

@JADEJOB Hello, Your family could log in the admin account on the phone ( with same email and password) to use Talk & Voice Call feature as a temporary solution.