Problem with packet transmission after 255 sends #141
Description
I've encountered an issue with the MKRWAN library when using the MKRWAN1310 board. After successfully transmitting 255 packets, the board stops sending packets correctly.
Specifically, the packets after the 255th transmission have the following characteristics:
They do not include FRM (Frame) or FOpts (Frame Options).
They are transmitted as unconfirmed uplinks.
The packet counter (FCnt) continues to increment and is sent correctly.
The uplinks are "empty," meaning they contain no FOpts, FRMPayload, or FPort.
This issue seems to occur consistently after reaching the 255-packet transmission limit. Any help or suggestions to resolve this issue would be greatly appreciated.