I’m trying to establish an PPP connection using AT commands on a HL7588 module on a Mangoh Red devkit. I live in Brazil and I’m using a TIM Group SIM chip. I send the following AT commands via UART:
When I send AT+CGPADDR=1, I receive a 100.xxx.xxx.xxx range IP address (I believe this is an internal IPv4 address).
Then I send an ATD*99#. The module responds with CONNECT, then sends repeated LCP frames but I get no response, then I get a NO CARRIER response.
I was, however, able to successfully establish an PPP connection using the USB port on Windows with the Windows Dial-Up tool.
Am I missing additional AT commands to establish a PPP link?
Thanks in advance.