@Ebarlev As David-TP posted you've configured VR600 in 'wireless router mode'. While this should work you'll introduce a double NAT in your network. If you want to avoid that leave the VR600 in 'DSL...

@Llydd In some router models the menu section for port-forwarding is named Virtual Servers. So if you have such one, use it to configure your port forwarding rules.

@FazalMFH This error means that you've entered an IP address that is not in your LAN subnet i.e. my example was with 192.168.0.10 (192.168.0.0/24 subnet). If your LAN is in 192.168.1.0/24 subnet you...

@Mahabur It seems that this model is tailored for ISPs. Was it provided to you by your ISP ? If so then that's the reason for not seeing it in Tether app. Here's the Tether compatible list of...

When the router is behind NAT already (double NAT) after remote login attempt to the WebGUI, the browser redirects to the tplinkwifi.net local URL and the router's WebGUI goes inaccessible. If 'HTTP...

@Rashedmsamii There's a newer FW for your router - update it manually and check if that will improve its performance. Here's (Case 1) a guide on how to update the FW manually.