I have a travel router (Mango GL-MT300N-V2) and I use my pixel with a SIM card. I try to use Tethering USB between my pixel and Mango V2 but I don't have an internet, that says "The interface is connected, but the internet can't be accessed". What should I do ?
Please confirm that your SIM card is usable and that the subscription plan supports hotspot sharing.
You can connect your Pixel to the computer and configure the network sharing settings to check if the computer can access the Internet.
Did you set the USB connection type on the Pixel phone to USB Tethering? I think the default is charging only.