I connect my S21 and try to enable USB tethering on SFT1200.
When I plug on USB cable and my phone show cable is disconnected.
I got kernel message from router and attached here.
[ 174.720212] usb 1-1: new high-speed USB device number 2 using dwc2
[ 174.979844] cdc_acm 1-1:1.1: ttyACM0: USB ACM device
[ 175.050365] dwc2 17000000.usb: Overcurrent change detected
[ 175.290399] usb 1-1: USB disconnect, device number 2