Ensure active connection (that you are online)
using putty connect (serial) modem AT COM port
using phone use LibTerm or Termux
FIRST
ATE (this allows you to see what you are typing)
NEXT
AT+QETH="ipptmac",FF:FF:FF:FF:FF:FF
NEXT
AT+QETH="rgmii","ENABLE",1,1
FINALLY
Check that IPPT is working: AT+QETH="ipptmac"
The output should display the MAC Address of your WAN port
REVERT CHANGES TO ORIGINAL (undo)
AT+QETH="rgmii","DISABLE",1,1
CHECK COMMAND: AT+QETH="rgmii"
disabled output should be
AT+QETH="rgmii","DISABLE",1,-1