@Awadh_Saleh It seems that TD-W8961N is not a Tether app compatible device. Check the list of Tether compatible devices here.

@router777 Port Forwarding should be configured in Virtual Servers menu as you already guessed. Try leaving the Internal Port field empty and click on Save to check if that will work for you:

@shadowoff09 TL-SG108E is an easy smart switch, it's not a managed switch. You can assign an IP address only in the default management VLAN 1. The switch can be accessed only via its WebGUI on port...

@MrGrumpy Try factory reset the router using its reset button on the back (use a paperclip or a toothpick to press until you hear/feel a click): After a successfully reset you can re-configure the C6...

@privateflyer05 Let me explain in details: The issue you're describing looks similar to the one I posted, but the device used is different - Archer C6 v2. That issue is valid for both...

@FL1970 I understand your intention to get back your router log normal appearance by your initial post. But as you can see nothing more can be done to resolve this situation given the tech support...