PPPOS switch back from AT mode stop working

[garudaonekh]

Hi,
When I switch back from AT mode to PPP mode, the internet stop working. I use the PPPOS Example. I use SIM7100ce. espressif32 @ 5.3.0

I use the dte->change_mode(dte, MODEM_COMMAND_MODE) between the two mode.

Do I need to tear down everything and reinitialization the pppos--a costly process because I need to switch often?