@LCG Try these settings to see if any difference:

@Bamba Here's how to use Parental Control on your device. Pay attention on the notes in red at the end of the guide.

@DeanoSauruz Here's how to find your router IP address. Here's how to change the administrative password of your router. The idea is to log in your router through its LAN IP address, change the admin...

@Ilya-lc If you're talking about the router DHCP server, it will start to serve IP addresses from 192.168.0.2. The 192.168.0.1 /21 network has 2046 usable hosts. Given that fact I don't think you'll...

@DeanoSauruz Do you have more that one TP-link device in your netwotk ? Try login the device via PC web browser at http://<router LAN IP adress> and set the admin password again. If the issue...

@Satish.Bachim , TL-MR3420 V5 and above are compatible with Tether app.